EOS web installer bug on FP5

I have seen numerous topics on installation issues after locking the bootloader - but my bootloader is unlocked and still the phone is stuck in the bootloader mode after installation:

I have “successfully” installed EOS on my FP5 using the e.foundation/installer/ with Chrome on Windows 11. I had to update some android drivers first to get my FP5 identified by the installer, but then it worked.

However, after the “successful” completion of the 24 installation steps, the phone would not automatically reboot in EOS but remained stuck in the bootloader screen.
I found a similar post on EOS web easy install bug on FP5 with Ubuntu 22.04 (#8547) · Issues · e / Backlog · GitLab with no answers yet.
I can’t neither boot EOS nor repeat the installation with the e.foundation/installer/ as it does not recognize the phone in the bootloader mode.

What else can I do? Thanks for any advise.