LMDE 7 (Linux Mint Debian Edition) is out now as the latest from the Mint team based directly on Debian instead of Ubuntu. It's their fallback plan of Ubuntu ever truly goes to shit, making sure Linux Mint could continue on and it's a target for various software they develop to also ensure their stuff works outside Ubuntu.
LMDE 7 is based on Debian 13 Trixie, which originally released back in August and comes with all the changes from that.
The Linux Mint team didn't really go into any detail on any of their own changes, their release notes gave a one-liner of "Linux Mint 7 comes with updated software and brings refinements and many new features to make your desktop experience more comfortable". Helpful. Mostly, it will be the changes from Debian 13 along with all the updates they made to the Cinnamon desktop for Linux Mint 22.2.
Source: Mint Blog

So this'll be an interesting experiment. Here are the people I'm moving to Mint from win10:
1 - 44 yr old close friend - very tech savvy - mostly used for work - should be easy I think.
2 - his ~75 yr old mother - least tech savvy human being on earth - but only uses computer for solitaire and email, nothing else. I think I can make it work.
3 - 60 yr old close friend - medium tech savvy - laptop is older but works totally fine - I think this is the one I'm most worried about.
That last I believe can be made a lot better if you arrange to get your hands on the Windows fonts and put them in where LibreOffice can see them. Or I guess put some of the fonts you find in Linux into Windows? Anyway, a lot of the trouble with Word on Windows and LibreOffice on Linux documents not looking quite the same is if they don't have the right font and just grab some other one that's available to use instead. That can affect not just how the letters look, but how much space they end up taking up, which will mess up layout. Have the right font and everything will be a lot closer to identical.