M1 Mac mini owner and LG 24", purchased Jan 2021- going from 2014 MBP, 2009 iMac, 2012 iMac.
Light user, home Photoshop. Very light video. Worked at an Apple dealer until 2018 so worked with 21 and 27" 4k units.
Ran Collins Patchers to keep the OS's up to date (stayed at Mojave) to sync with iPhone 11s, 2020 iPads The Patchers have overall impressive performance, only suffering on demanding graphics, and on 12-7 year old hardware. Did well on Apple stock so splurged - wanted the 4k res, but on 24"(Desk space, slightly larger default font-I'm old-). Was willing to wait for an rumoured M1 iMac, but realized 27" probably first, then 21-24" so late in the year, next year, and -I'm old....
So an M1/LG 4K is pretty close to a hypothetical M1 24"iMac, but available now- I'm old- for probably about $200 less