.Uhm...

What did you need to set for KeepassXC? The flathub version and fedora RPM just work.

You can modify flatpak permissions easily in KDE or using Flatseal though, to remove a lot and especially restrict keepassXC to only readwrite one directory.

Uhm, what other Office Suite is there on Linux?

• Openoffice is discontinued and Libreoffice is the modern Openoffice.
• There is KDEs Calligra which can do stuff but I see no reason for it.
• WPSOffice is available as a Flatpak wrapper, the app should not be trusted but it runs on XWayland without problems. But really dont use it.
• online office suites work perfectly fine through a Browser (Collabora, Onlyoffice, Google cancer, Miscrosoft Cancer)
• I have no idea of Onlyoffice but isnt that just Libreoffice with the cloud integration? This is really useful, last time I used their version it was just a weird rebranded Libreoffice.

I have no idea why Wayland should cut down your choices. Use XOrg if you want, nobody stopping you, it is simply unmaintained for years pretty much.

There are TWMs for Wayland and they are said to work (have a look at wayblue), I use KDE and tried GNOME and both work. Use any weird old TWM through rootful XWayland if you really want to. This is not waylands problem, X.org is old spaghetticode that nobody wanted to maintain, and there still is no rise in contributions even with all those self-entitled Linux Experts complaining about their weird old nieche Desktop being abandoned.

Nearly (?) all development is done for XWayland, which is normally used in rootless mode, but you can use it rootfull too, and run a complete XOrg Window manager on a minimalist Wayland compositor. Brody Robertson made a video about that.

XWayland is automatically used for all Apps without Wayland support. I never used Gamescope but suppose this is nice, but I dont care about Gaming as I wasted way too much time of my life there. If you want to game, use uBlue Bazzite and call it a day. Its a modern Distro, based on Fedora, using Wayland, made for steamdecks and also PCs.

I never set a single flag for anything and have no idea how Wayland works, but I used it since at least 1½ years.

Wayland has nothing to do with NVIDIA. It was not ready when it "came out" so people where not giving it a chance for obvious reasons. They preferred to use extremely insecure and unmaintained but working Display management.

Now the pressure finally rises, NVIDIA already shipped a lot of updates for Wayland, but in the end it is their fault and you may not want to use hardware from a company that doesnt give a sh*t about FOSS on Linux. I have no idea why people would want to do that? There is literally the high likeliness of backdoors in your damn GPU driver, allowing the green team to see everything you do.

Why use Linux if you entire Graphics are using a proprietary black box?

Wayland is ready. I have no idea of developing Apps, but I suppose just using a good Toolkit is the start. If you are lazy just use Electron, but Qt works just as well cross-platform, if you are fancy use Slint. We can argue if developing apps for Linux is ready.

I think there are bigger problems like good easy IDEs (only GNOME has one) for Linux, or the packaging issue that is fixed by Flathub. Wayland is just a change.

I maintain a repo with a list of recommended, modern software

I have tested a lot of apps, and those are the best. Keep your system secure with modern apps following best practices, using portals, that are Wayland native.

And to be honest, people can just use old Software through XWayland forever. They often dont even need to change.

Projects like Bluerecorder are nice and very alpha on Wayland, here I agree they are struggling to make it work but it works. Using OBS for minimalist screen recording is huge bloat.