I am considering eventually adding this lens, mostly to use with my R10 when I take it as my "light weight travel kit". I used to own a M50, along with EF-M 11-22mm, 18-150mm and 22mm f/2 lenses, for that purpose. I have (or will soon have) RF-S replacements for the first two EF-M lenses, but am still searching for a 22mm f/2 pancake replacement. I own a RF 16mm f/2.8, but that's mostly used as a wide angle solution for my R6 m2. It's a little wide for my intended purpose on the R10, though.
During my dSLR days, I had mostly "L" lenses paired with 5D3 and 7D2 bodies -- EF 16-35mm f/4 L IS, 24-105mm f/4 L IS, 70-200mm f/4 L IS, 100-400mm L IS II, 50mm f/1.2 L. In my switchover to mirrorless, I only have a single L -- the RF 24-105mm f/4 L IS. The rest of my lenses are non-L's -- RF 16mm f/2.8, RF 35mm f/2 IS, RF 50mm f/1.8, RF 100-400mm, RF 800mm f/11 IS, and RF-S 18-150mm. I plan to add the RF-S 10-18mm later this month, too. I have been very satisfied with each of these lenses.