Ending development for UE4 is a huge mistake.
The branch of UE4 is being abandoned with a series of bugs that were never fixed, bugs that break the proper functioning of the engine.
UE5 is clearly aimed at new generation consoles, the performance loss on mobile devices is huge, mainly due to the lack of features such as software occlusion.
The lack of fixes and the implementation of new features in UE4 coupled with the loss of performance in UE5 may doom the development of quality Unreal apps for the Quest platform.
I opened an issue reporting this:
According to Jay from Meta they are discussing about the possibility to release another version of UE4 4.27.2 with fixes.
It is important that you as a developer take this opportunity to report the issues you are experiencing with the current UE4 version, as well as suggest improvements. So at least we will have a more reasonable last version to finish our projects...