I disagree lol. Running it on my S23U as well. Since it's been going so smooth there I didn't hesitate to install on my flip. So far my phone seems to be running much snappier.I'm running it on the S23U, one beta device is enough lol.
But do let us know if there are any nice Flip specific features.
Some modules are working fine and others are not. I think it's notistar that is most noticeable to me.I forgot that Goodlock doesn't usually work with the betas. Good news though on this one I'm having no issues with goodlock. Working just as it would with Android 13.