I'm currently working on a large migration for angular from v8 to v19/20 and I'm on the v11 step. I went through the documentation of releases to see the latest version of popover that I could install for the current version and I saw that version 7.0.0 and 8.0.0/8.0.1 were both said to be compatible with angular ^11.0.0 however when I run the command npx check-peer-dependencies it mentions that 8.0.0 is made for angular version ^12.1.3.
I'm not sure of the specifics of the minor versions when it comes to this but I thought I'd bring it to your attention so you can fix the documentation in the releases section.