Many people suggest popOS for a new linux user which is based on ubuntu which in turn is based on debian. I never tried popOS but i found ubuntu hard to get packages or find help with when i was first learning.
I would recomend endeavourOS which is based on arch. In arch, its very easy to get packages and and find help since you can use the aur and the arch wiki . But it might require using the terminal a bit more than PopOS. Dont let that intimidate you however, the terminal is actually not hard to learn and many tools guide you through using it.
Both are better than windows and i would recomend you try them both on your machine. Just download the live image ISOs to a usb that has ventoy installed. Throw some other distros on there too like nobara just to round out your testing.
Then you can always install it on an old computer (even one that windows dosent work well on) or a spare hdd/ssd while testing until you are ready to leave windows for good.
I havent tried it, and i dont normally recomend snaps but fusion360 is in the snap store.
https://snapcraft.io/install/fusion360/arch
Also searching arch fusion360 (you can replace arch with another distro) gives a few hits that makes me think its possible like this one.
https://github.com/link12765/Fusion-360-Arch-Linux-Script/blob/main/fusion360_install.sh