Installed Bazzite, can not boot anything now

Hello, I followed How to dual-boot Windows 11 and Bazzite (old version) but after installation and reboot I can not even enter BIOS. I have ACER desktop PC. The monitor is only on for a few sec so it is detecting signal but then nothing appears.

It kind of reacts to keyboard, i tried blind F9+enter+F10+enter and it suddenly restarted but still can not see anything on my monitor. I want to get to BIOS somehow.

no idea what went wrong

please help, instalation went ok

i selected Fedora now as boot, but I cant run this still

I don’t have an ACER but here How to Enter the BIOS Setup - Acer Community it is said that for a desktop PC you just enter the Delete key to get into BIOS.

This doesn’t really work???

Okay solved had to press F2 repeatedly and change hdmi to new ports in monitor, also reset CMOS but it did not help at first.