In my opinion, that's because X11 lacks proper abstract for many things like screenshot, screencast, color managerment and etc, so the applications have to use many X11 implementation details to implement these features. It leads to high-coupling code with X11 so move their code to wayland and ensuring it works correctly and is consistent with the old behavior is difficult.
Coelacanthus
That may be because the hostname can't be resolved.
https://forum.suse.org.cn/t/topic/12280 (Chinese)
https://bugzilla.mozilla.org/show_bug.cgi?id=1296836 (upstream report)
So use Fcitx 5 Android instead. It's a open source IME application without requesting any permission except Notification, especially without network permission.
zsh, because of highly customizable.
I use Yubikey 5 NFC and Canokey Pigeon, both works out of box on Linux.
I don't think Sidebery is a great implementation unless the developers fix this bug. It can be reproduced stably and is important for users who opened many tabs and keep them between session.
It's better to integrate Tree Style Tab addon instead. It's not a good idea to re-implement a function which already has a great implementation...
Konsole, because I can use it in editor(Kate), file manager(Dolphin), IDE(KDevelop), standalone window and Quake style window.
Maybe you can do both: physical USIM card, but with eSIM functions. So you can move your profile from one phone to another just by plug out and plug in, and install many profiles on one phone and switch between them. There are some products can do it, such as eSIM.me, esim.5ber.com or https://github.com/estkme-group .
I print recovery codes of all services and packed them into a bag.