that is the same bs rpios says with every release. most likely they just don’t want the forum with a bunch of people having ods issues.
I installed rpios on my pi400 three yrs ago then changed the Debian repos to Sid and updated. Been doing apt upgrade ever since with no problems.
Does it have a SD card slot, and if so can it take a 256GB card? 26k epubs and pdfs. Who pays for books?