@solene I feel like I should give an update here, as my experience with Ubuntu Touch has been more mixed recently. Apps are somewhat hit and miss, with many things like Matrix and Signal just really not working well. For Matrix, I have an old version of Cinny for notifications, and the web-app for actually communicating. The QTWebEngine version is quite old at this point with no update in sight before the OTA for 24.04 arrives. Waydroid drains quite a bit of battery.
I'm really trying not to be too negative here. There is still good stuff, but I just feel like I need to balance what I've said previously. If there's one thing that I feel has marked my experience so far, it's that Ubuntu Touch is quite different from other mobile GNU(like)/Linux distros, which seems to incur quite a lot bigger of a maintenance burden, which, combined with a lack of volunteers, makes for an experience which has parts of it which are hard to swallow at this time for my use case.