Hey,
I was thinking about this earlier, thank you for making this post.
I had a lot of the same questions in my mid-20s. I had graduated university, started working, made some money, so I could afford going back to Vietnam two times for around a month each time. It was great. Being in a place where everyone looks like you, speaks the language you speak at home, eats the food you eat at home. It's a very unique experience, only immigrants understand what it is.
I liked it so much I even considered living in Vietnam for a few years. I started looking at visas, jobs, etc. I had a few leads. Then COVID happened and stopped all of that. A few years passed.
Post-COVID, I was almost 30, and decided that being closer to my family and friends in Europe was more important than living in Vietnam. I still moved to a much bigger city to have a more multicultural environment, met my girlfriend there, we've been together for a few years now, we are happy together.
She's not Vietnamese, and that's fine. I came to terms with the idea of marrying a second generation Vietnamese when I decided to stay in Europe. It's a numbers game in the end, and the Vietnamese population is just not large enough in Europe for it to happen. Not really something I can change at my level, and I'm happy with that anyway. I still speak Vietnamese to my parents, I visit them every few months. They are aging, and they are also happier to have me in Europe rather that all the way over there in Vietnam.