@luana for an xmpp client kaidan might be good enough (idk about spaces support and it appears that my xmpp server is down so i can't check)
for discord i think your best bet is probably dissent (which is gtk4 sadly) or maybe just use a pwa as i think they added a mobile layout for the webapp
signal is a bit of a dead end as flare last time i tried to use it barely worked and it's gtk4, i think i did see a project that did tweak the electron desktop client for linux mobile, i can't remember where that was from though
for telegram the official desktop client should be good enough as when i last used it basically had all the features of the mobile app (although i think they removed sign ups from it), also iirc it's qt and not electron which is a bonus
for the email client, the pmos repos have mobile-config-thunderbird which should make thunderbird more better on mobile, my second recommendation would be geary, but i've had problems with it remembering the email passwords so i would just use thunderbird
for all the others i don't really have much of a clue apart from the new plasma keyboard is better than the old maliit keyboard but it's still missing the keyboard height adjustment though, all of the onscreen keyboards suck in their own ways unfortunately
for discord i think your best bet is probably dissent (which is gtk4 sadly) or maybe just use a pwa as i think they added a mobile layout for the webapp
signal is a bit of a dead end as flare last time i tried to use it barely worked and it's gtk4, i think i did see a project that did tweak the electron desktop client for linux mobile, i can't remember where that was from though
for telegram the official desktop client should be good enough as when i last used it basically had all the features of the mobile app (although i think they removed sign ups from it), also iirc it's qt and not electron which is a bonus
for the email client, the pmos repos have mobile-config-thunderbird which should make thunderbird more better on mobile, my second recommendation would be geary, but i've had problems with it remembering the email passwords so i would just use thunderbird
for all the others i don't really have much of a clue apart from the new plasma keyboard is better than the old maliit keyboard but it's still missing the keyboard height adjustment though, all of the onscreen keyboards suck in their own ways unfortunately