COSMIC most of the time and then gnome as a fallback when I run into any temporary issues I can't work around.
I do this with a custom bluebuild image I made that uses ublue (fedora 41) as a base and then added cosmic on top along with some other layers that I need/want.
Even better is that simplelogin was purchased by proton and it being incorporated into the product. Already mostly done from what I can tell. I started with Firefox Relay and if they even give me a reason to leave I'll just switch over to what's baked into proton. There is something to be said for keeping them separate though. If I ever leave proton, having kept the relay service separate would be a big time saver.
You could always give out a relay to your family and friends as well. Both Firefox relay and SimpleLogin have custom domains so you can give you mom an email address like [email protected]
Here's how I solved email spam.
Bonus 01: since your changing all your services manually, you can decide to delete accounts you don't need anymore.
Bonus 02: each relay is unique to the service so you can tell when a service either got hacked or sold your info.
Side Note: there are setups similar to this for credit cards. I use Wise.com for online transactions with 3 different "virtual" cards that I can destroy if they get exposed.
Linux will get multiplayer game support from those straggler game companies when people show the userbase is there. They will always follow the money. So if you stay with Windows the devs won't support Linux. So saying "I'll move to Linux once they support it", will ensure they will never support it.
My suggestion is to dual-boot for now and keep putting pressure on the game devs to support Linux. It's important to dual boot and run as many games on Linux as possible for now to show in the steam metrics that more people are leaving Windows.