You say "dual". Whereas I'm thinking more like.........20-30 different OS's. Maybe 50. Could eventually be 100. This may eventually sprawl across multiple PC's. I'm very early in my days of mad scientist swapping. I just made Linux Mint yesterday, and tonight I'm going to try all these:

https://www.techradar.com/news/best-alternative-operating-systems

Except for the ones that cost money. Plus, I like the idea of inserting cartridges like an old school NES. It's just satisfying.