Fulltime Linux user since... 2010, part-time (dual boot) from probably 04-2010.

Hardware wise, I've never had any major issue. Nvidia cards sometimes cause relatively easily fixed issues. Some Linux distros such as Pop_OS! I believe come with Nvidia drivers and related packages installed, as well as Wine (useful for Windows programs/games).

As far as GUI goes: I stick with XFCE, Cinnamon or MATE desktop environments. Pretty familiar UI. Taskbar, menu, etc.

As far as support and fixing errors? Probably easier than Windows. My limited experience with Windows in recent (10 years) has been dealing with customers for a company that sold servers. Some users had Windows servers, but the company didn't have any specific Windows based staff/support available at all hours. Searching the web for the errors shown on their stuff would very frequently yield forum posts / threads with someone else asking the same question, but no one responding. Was incredibly frustrating at times. (And other times you'd find the answer, and it was a quick fix...)

Linux? Just copy/paste the error in your search engine of choice and you'll find a ton of discussion about that error. You'll find the resolution. You'll find someone else saying, "Well, that will work, but you can also do this." and someone else will respond giving you an opinionated history lesson on how the change from X to Y in a recent major update of the program in question was stupid.

Run Linux in a VM or try it on a USB stick first. If you kind of like it, then install it alongside Windows (dual boot).

I ran Pop_OS! for the first half of 2020. I liked it, and it worked great out of the box with my card and desktop build. I'm not a gamer by any means but I'll go through random spurts about once a year where I may spend a month playing Kerbal Space Program or City Skylines or something like that... and it all worked very well via Steam. I don't specifically recall any obstacle in getting it all to work that may be challenging to a newcomer, I think it all just sort of worked.