In order of easiness:

• Steam (click and play)
• Heroic (click and play)
• Lutris (search the right game entry, then click and play)
• Bottles (gives you access to some game launchers made for Windows)

I suggest to install all of them with Flatpak to avoid messing up your system different with Wine versions, prefixes and whatnot

It takes less than you think. It’s not always windows-easy but a little troubleshooting and googling is usually all it takes. The biggest sticking point is anti-cheat, if the kind of games you like require it.

Wine, lutris and steam are your best friends on linux in terms of gaming