FYI there is also “Island” (white triangles on blue yellow background) on the Google Play Store which does similar if you don’t want to bother with FDroid.
I use it for isolating work apps, only oddity is having to install a second instance of my favourite keyboard and browser app, and if I want to attach a photo to say Teams, the file picker will show nothing until you switch it to browse personal files.
It was at CES 8 months ago as a prototype, but had anything actually happened with it? I can’t see any dates on the site and the preorder doesn’t work.