I did _exactly_ this 3 days ago after I hit a random keyboard chord on accident and brought up CoPilot (which I don't recall installing). I had held on to Windows for gaming just because I didn't want to fuss with Linux, but it was the straw that broke the camel's back. Instantly installed CachyOS onto a USB stick and formatted my entire drive.
I use KDE Plasma and it worked just fine. In fact all of my games (including Arc Raiders) are working just fine on Proton 10, maybe running slightly worse. The only issue I've run into is getting battle.net working through Lutris; I ended up manually installing it through Proton 10 on Steam and it worked just fine. Wish I made the switch earlier.
I got Battle.net working through Steam. The way I have it is I add the battle.net installer into steam, add proton compatibility, once you run it it installs, but next time you run it, it just opens the launcher unless it needs an update. Then you can install World of Warcraft and other games there and run.
So far so good running CachyOS and KDE Plasma.
The content is great, and most of it is available on Open Courseware, YT, etc, but here's what else you get by officially going through the program:
- the amazing community of TAs
- the assignments
- the feedback on reports & projects (either automated, or through TAs)
- the collaboration with other students on Ed, Discord, Slack, etc
- the forcing function of deadlines, having to study for exams, etc
- free access to academic libraries, IEEE, ACM, O'Reilly, etc
- access to software and services, educational packages from GitHub, Wolfram, Google Colab Pro, student discount in a bunch of places, etc
Another underrated aspect is GT's ability to preserve rigor of the program overall, despite the scale and number of students in some courses (the most popular ones have 1,000-1,500 students per semester).
If you're on the fence on applying, I strongly recommend you do. The program is affordable enough that there's no harm in trying for a few semesters to see if matches what you're looking for.
Glad to answer any questions.