EOL use ng, https://github.com/minecraft-linux/mcpelauncher-manifest/tree/ng, This works with 0.12 - 1.16.10.x (excl. beta 1.16.0.67/68), This won't work with the current 1.16.20-200 Versions
Why do you think that https://github.com/waydroid/waydroid is a good alternative to mcpelauncher-manifest