Buried in the 0.98 blog post:
As you have found - the move from Debian to Alpine changes the libraries (GNU to Musl) and many python packages are not built for this (due to manywheel being for GNU). I was able to follow the below instruction to successfully build openCV on my system from source - but this is not worth the work to do every time HA updates.
https://docs.opencv.org/master/d7/d9f/tutorial_linux_install.html
I’m a novice, so I can follow instructions decently, but do not have the knowledge of what would need to be done to make this a package available on the python library site.
I hope this helped!
Cheers!
DeadEnd