@debian

Morph-browser and videos:

drm content does not work (it's a global, not device specific issue) other videos should work, I am not aware of any issue in this regard, please post an example

Waydroid:

make sure that your terminal does not go to sleep (use App UT Tweak Tool) or just set system-settings/battery-option "time until sleep" to "never". use terminal: sudo mount -o rw,remount / sudo apt update && sudo apt install waydroid -y sudo waydroid init restart start waydroid by clicking the waydroid app icon in the app-drawer wait about 30 seconds there maybe two open windows after starting, you can close one of them (which seems to free RAM btw.), pick the black one

If you close all waydroid windows, you will need to restart the waydroid container or "stop" it properly, to make it successfully starting again.
For this you can use the waydroid helper app and install the "stop-helper-app". Execute it, after closing all waydroid windows or if you just want waydroid to stop, which saves battery.