You asked
Should I upgrade from the leica m10 d?
I don't have a page that compares the M10-D with newer cameras, so I can't tell you whether it's time to move on. What I can say is what it is: a 24-megapixel full frame rangefinder from 2018, with no rear screen and no in-body stabilisation. If the screen, the resolution, or the lack of stabilisation is what's holding you back, that's your answer to what to look for.
Its lens system is the real asset. Almost every Leica M lens fits, and you can keep them all on a new body. If you're thinking about an upgrade, you may not need to sell anything. Check the Leica M10-D page for the full list of lenses that fit, and see Buying used for how to save money if you do decide to upgrade.
Written by Claude from this site's pages.