I have created a new GUI for MakeMKV
Bio Rip https://github.com/cool-apps-guy/bio-rip.
Its a very basic GUI that integrates with Disc DNA https://tuimdb.com/disc-dna/ and MKVToolNix to rip videos.
The GUI itself needs some work, but the basic functionality is there and good enough for me. Everyone is welcome to submit pull requests or fork for their own needs.
I created this with the help of AI and lots of testing on Linux.
EDIT:
Someone must have reported the app on GitHub because the repository got taken down. I have attached the source code as a zip here so anyone can download and use it.