As 90 proc. of post on this section of forum I keep seeing ZT just disconnecting after a while.
I saw it being suggested that it may be power management of the phone.
It is not. I ran a test:
I ran ip webcam android app that would stream over ZT to a server a frigate server. (1080p 5fps H2.64) it would last from couple of hours but hard to tell when it would cut out. It felt a bit random but it never lasted over the night.
I also ran tailscale with same video streaming to the same server… I stopped it after 48 continues hours of streaming.
Everything is on same power management settings.