I think I figured out how to apply F4SE into the GamePass version.

[dhrgusdlrns1]

First time

I moved the game folder.

Then fallout4.exe is unlocked from editing.

Then I started f4se_loader.exe.

I played it well and some mods which needs f4se worked fine. (Survival hud mod)

Also I got 1 achievement with no mod but with f4se.

Later The game went wrong and get totally broken. Xbox app doesn't recognize fallout 4 and I can't played it.


Second time

I re installed it previous way and try it again.

it worked well as I tried.

 

Then I moved back the folder where it was. (It's default install location)

 

I rebooted and played the game, it worked well.

 

So my method is

1. Move your game folder into another place

2. Start F4SE.exe and play game

3. return your game folder to the default place.

 

I don't know its exact reason but it worked well.

 

PS. I joined xbox insider program, but I don't know whether it's the reason why I can use f4se or move folder.

PS2. Sadly, Achievement enablers(Both versions on Nexus mod) didn't work.

[SinisterExcaliber]

Can you explain what you mean by "Move into another place" i tried and my vortex tweaked this would be super helpful if you'd be down to go into a bit more detail