I'm also a very happy W7 user, but I've recently been checking out various W10 versions, and tweaks, to see if there's anything to be gained from going to 10. So far I'm not convinced it's worth the effort. My W7 Ultimate 16GB ram machine, with Windows on a Samsung 500GB NVME 970-Plus SSD and numerous multi-TB SATA drives for storage is is very fast and well behaved. I know where everything is and how to accomplish all the tasks that interest me. The GUI is well laid out and easy to navigate, especially when it's tuned up a little.
If I
were to move to 10, I'd probably use an Enterprise, or Enterprise\LTSC version, with Edge, Cortana, Defender removed, along with all the gratuitous OOB apps and with Windows Updates turned off. But I still hate 10's interface, so I'd want to severely tweak that.
Nope, nothing to be gained from W10. W11 is, IMHO, no better than 10 - maybe even not as good. Maybe 12 might contain all the best features of 7? Now, that'd be worth checking out