I own an iMac 2011 27". (20GB ram, 256 SSD, not an HD drive at all, hugh Sierra) using it for FCX Pro (mostly 1080, rarely 4K), audio editing, photoshop and (via skype and messenger since 2016) teaching chinese.
I intend to by the new iMac 2021 24" because I can not wait any more for the new...