@Xeniax I have it installed on my Pixel 8, and it's been a pretty flawless experience so far.

Risks I would say is stuff like Google Pay that depends on SafetyNet doesn't work, i.e. your banking app might not (mine does).

Benefits are the security hardening improvements that protect against threats that are an issue even on a fully updated AOSP, and the increased isolation of apps and permission management.

It's in my opinion the most secure mobile OS, only iOS in lockdown mode is even in the same ball park.