the one thing linux really hasnt been made on par with winblows yet is the dreadful amount of options for android simulation -the most popular choice seems to be Waydroid, but its such an unneeded hassle to set up at all -genymotion is just slow -and than you have things like android x86 which entirely defeat the point of an emulator
I have no idea what you just said, nested compositor? Cage?,
But thats myoriginal point,
This makes it defacto unusable for people who dont want a hackerman solution, or jumping through hoops you have to research
Imagine telling that to a total newbie now who just wants their apps on linux like nox or bluestacks do