yet another problem that I'm still investigating: push notifications. Still FP5 on build 111 now.
It has been exposed by me installing Deltatouch, the Ubuntu Touch client for DeltaChat.
It works well enough but needs a systemctl --user restart lomiri-push-helper to get any kind of notification (sending a text message to the UT phone is enough to show the problem).
Looking at the DeltaTouch repo, something like that has been reported, the maintainer has not been able to repro it reliably and asked for an issue to be created upstream that has been ignored.
With 26.04 the problem is very reproducible - rebooting several times, each time the notification don't work.
Needless to say, after switching back to 24.04-1.3, the notifications work fine (restart 2 times, each time the notification worked straight away without having to restart the service like in 26.04)