Telegram close to unusable since last update (wayland backend breaks with change to wlroots 0.15)
About two weeks ago telegram-desktop was updated to 3.4.3-2 and this update made the app on Phosh nearly unusable. While everything had displayed perfectly fine before, the app is now very blurry and the window is shifted towards the lower left corner so that the text input field is not visible anymore. Since the input field is preselected when you open a chat, you can still type messages, but you won't see what you type (unless you add some line breaks) until you have sent it. Same display problems in portrait and landscape mode, scale-to-fit also doesn't change anything. I downgraded to the previous version (3.4.2-2) to be able to keep using the app, but that version stopped working properly today (I can't open chats anymore, also became laggy overall).
Edit: As reported in the upstream bug report the underlying cause seems to be that wlroots 0.15 breaks the qt wayland backend. This change was introduced with phoc-0.11.0+28+gf4f80af-2, so downgrading to phoc-0.11.0+28+gf4f80af-1 fixes it for now. The visual weirdness is due to telegram using the X backend.