How about something like a pet door opening in the garage door. Run the vent along the floor of the left side of the garage

I got it. It did pull straight out, but was really wedge in good!

I’m 99% sure this is a pfister avante. Didn’t see any removal tool online. It’s really not budging.

Agreed! I always hated that Reddit mods took such a lax stance on this subject.