Ubuntu 20.04 LTS upgrades to jammy are not offered until after the release of 22.04.1.
Ubuntu 21.10 upgrades are offered after the release of Ubuntu 22.04; ie. earlier.
LTS users it's assumed want a very stable system, thus upgrades are offered considerably later.
You can watch the release schedule for Ubuntu 22.04 (or currently jammy) using
https://discourse.ubuntu.com/t/jammy-jellyfish-release-schedule/23906 but you'll upgrade much earlier from 21.10 than from 20.04 LTS, but you can always force an upgrade from 20.04 LTS sooner than it's offered.
FYI: Recommending requires an opinion which is off-topic on this site in my opinion (Ubuntu Forums allows opinion geared questions), as both Ubuntu 21.10 & Ubuntu 20.04 LTS are stable systems, so for this answer I've picked a specific fact that differs - upgrade timing.
Consider what applications/packages you'll require. For Ubuntu repositories; the packages will really not differ (LTS releases have two kernel stack choices; GA or HWE, where as no such choice exists for non-LTS), but many 3rd party software sources only package for the LTS release. Here though you gave no specifics that allow a definite answer.