Yep.
With a little practice, putting a lot of lead into a decent group at very high speed is possible with the G20.
I run a G21 with a 460 Rowland conversion. A little more power than the 10mm with 200 gr bullets at nearly 1500 fps.
I practice with .45 handloads and a standard 45 spring weight most of the time as its different than my 19 I carry.
I would probably go 10mm for CO only, where I live, and wanted the extra for AK fishing trips with my kiddo.