@messayisto
you can install an UbuntuTouch splshscreen on some devices as well, see here:
https://rubencarneiro.github.io/rubencarneiro.io//Ubuntu-Touch-Device-Bootlogos.markdown/
cool ! I note that flash Xiaomi Mi A2 bootlogo deletes fastboot image, fastboot mode works but instead of this image :[image: 1657639383305-02_bootloader.png]
there is the black screen
Then I found this restored fastboot image and created my bootlogo :[image: 1657641102439-04_boot-unlocked.png]
The procedure is not difficult and is well explained ... perhaps it can also be used (adapted) to different devices.