If I press EFI Boot icon Mac boots in that mode

[tomsbrinkis]

After booting in selection mode "Press Alt till boots"

1. If I press "EFI Boot icon" Mac boots in that mode. (whaaaa)
2. if I press "Install BigSur icon" it shows me O with line trough it. (nooooooo)

Am I missing something? Hmm...
If some can, please help.

[moosethegoose2213]

What do you mean "Mac boots in that mode"?