I usually do Arch myself these days and spent many years with Gentoo. So I’m not too terrified of breakage!
I am putting together a Linux distro strategy for my company. I am the MD of a very small IT company in the SW of England. I already have my office manager asking me to liberate her from Windows! I recently had a techie asking me to help his transition! This is organic stuff and not pushed down by me. The techie is a dyed in the wool Azure lover.
I am used to being patient. It took me roughly five years to get a helicopter company that I worked for back in the day (late 1990s) to use DHCP properly - ie let them “roam free” and let DDNS pin them down. Sounds a bit ridiculous until you encounter “enterprise” grade nonsense.
I have set up laptops with most of the usual suspects and tried them out. However, I have to comply with Cyber Essentials Plus which is a UK standard. It is fine but rather Windows n that 'centric. That means I need full disc encryption and anti virus (AV) and Secure Boot. I got away with ClamAV in the past but ideally I get cross platform and that means ESET for AV/web etc. I use the usual Linux FDE.
I also need to join an Active Directory until I have got rid of AD! Oh and there is Exchange.
https://cid-doc.github.io/ - AD and Evolution with the EWS addon for Exchange.
So I dive in with Kubuntu after trying Rawhide and all sorts. Ubuntu is flexible enough whilst being stable enough for me. For example, Kerberos is screwed for the Firefox snap. I need Kerb for auth to my corp websites such as our wiki. Mozilla does a PPA - I dump the built in FF snap and use the Mozilla blessed PPA. All documented and all controllable in an enterprise sense.
Closed In Directory (CID) is a configuration for Linux boxes joining into the MS world. Its a super piece of work, getting Samba, krb etc all working together well, and with a GUI. You can run scripts from your DC for that GPO feel with it.
My needs are a bit more corp than your gaming shenanigans but my notes might help you decide what you want, what you really (really) want (zigazig … ahhhh!)
Ubuntu PPAs are a bit like the AUR for Arch … well you have to decide what you really want. You could start from scratch: https://www.linuxfromscratch.org/
Do you have any idea how hard it is to go from Linux to Windows?
Nightmare. The bloody thing keeps on wanting to peek up your skirt (even if you don’t wear one)