I'll respond because it seems like you're trying

Most guys have in mind with some gay twink trying to Hit on any guys they can.

I'm not sure how common this mental image is, but try to get it out of your head. The fact is there are some people who just want to have lots of sex with lots of people, some of these people happen to be straight, some happen to be gay, some happen to be guys, and some happen to be gals and some happen to be anywhere in-between any of the above. And that's okay, because different people are different and who cares what happens between consenting adults? And you know what else is okay? Some people don't want to have sex with anyone, some people only want to have sex with certain people, and some people are anywhere in between.

Most gay people are just normal regular everyday people with just a different preference in people that Theyd Date

All. All gay people are just people. Sexual interest is a spectrum, some people are only interested in other people of the same gender, some people are only interested in people of the opposite gender, and some people are somewhere in between, maybe mostly-straight or mostly-gay. And that's okay no matter where on that spectrum you fall.

On top of that both romantic interest and ones own gender are spectrums as well. These spectrums can have very different settings from each other and that's okay too. On the subject of gender, people have a physical and a mental gender, and sometimes those don't match. That's okay too (y'know as in it's okay to have that problem and be working to align the two in whatever way that makes them happy)

Most cis people totally envision either some annoying gay twink or a drag queen

First of all, don't use that slur. Full stop.

Secondly, drag is not a gender nor a sexuality nor a sexual or romantic interest. People who do drag are just people who do drag. They can be anywhere on the various spectrums I already outlined.

I have a feeling though that nowadays regarding representation, people that are pro gay & lgbtq do not really help at educating unaware cis people

They are trying to educate unaware cis/straight people, its just between algorithms, echo chambers and those who wish to eliminate everyone who isn't white straight cis, there's plenty of corners its not reaching.

This is not a failure of gay people, and this isn't any one gay person's job to educate the world. This is the world trying to pretend that gay people don't exist, when in fact they do exist and have existed for as long as gender and sexuality have existed

The reason we have pride is because we are in the first time in human history when anyone who isn't cis, straight, etc. isn't forced to ignore or suppress those feelings but can actually go be exactly who they want to be and be with whoever they want to be. Even now, as kids start to realize there's something different about them, they're first led to believe it's because there's something wrong with them. This might last a short time, this might last a lifetime, but pride is about squashing those self-doubt demons and shouting out to the world "I AM WHO I AM AND YOU WILL DEAL WITH IT!"

The importance of representation is in helping put the image in people's heads that it's okay to be different and that you don't have to be a white cis straight male to do certain things. Whether it's Mr Rogers sharing a pool with a black actor on a hot day, or Lt Uhura being played by a black woman in Star Trek, or Kora kissing Asami in Legend of Kora, or anything else, it's about showing and helping people know that they can be who they want to be and they can be happy about it. Media drives a sense of normalcy, so what's normal in media becomes normal in society. If it's normal for gay people to exist in media, people will see it as normal for gay people to exist in society.

Now, more on topic, Kingdom Come Deliverence is in a weird spot because it sets out to be the most realistic representation of a specific period and place in medieval history as possible. In the medieval period (and for most of history for that matter) people didn't really have an individual identity, so the idea of gay or straight people didn't really exist. They were however extremely sexist and mostly considered whoever did the penetrating to be powerful and whoever is being penetrated to be weak (and there's some hilarious historical texts where people are just generally confused about what to think of lesbians because there's no penetrating going on so did anything actually happen?) so CK:D in being an accurate period piece happens to place itself right in the crossroads of this culture war, as it presumably depicts gayness as many conservatives would prefer, something to be hidden away and ignored and maybe prosecuted if it gets too inconvenient for them, but CK:D depicts it this way not as a handout to conservatives but as an accurate depiction of history without commentary.

So TL;DR: gay people are people and different people are different and that's okay

It's worth mentioning that this sort of thinking gets really close to "there are good ones and bad ones" in some people's minds. IMO there's a lot of representation for the "non-normal" queers because they are the most vulnerable and because it needs to be clear that it's a package deal. People don't get to draw the line in places like "gays are okay but trans people are icky", and unofficially supporting mindsets like that would legitimize disgust-based morality.

People need to learn the lesson that others inherently deserve rights and respect regardless of their own personal feelings, otherwise we're just going to be fighting this battle over and over again for each minority group.