The only way I've managed to install Windows 11 was starting from scratch formatting disk, installing Windows 10, login in Insider, do NOT update any driver besides the ones offered by Windows Update, upgrading when offered).
The video drivers aren't compatible and was blocking the installation is my guessing.
What I really regret is that Microsoft did not show any info about what was blocking the installation.
A blind beta test is a no no.
Regardless this troublesome start, Windows 11 is a huge improvement over 10 and up to now, it worth the hassle.