Are you using WHM/CPanel? Ubuntu 20.04 has the longer time left on its support cycle (early 2025) , however, WHM/CPanel on Ubuntu is still fairly new and it feels like the WHM crew is scrambling a little bit to cover this transition. Alma was supported by WHM nearly right out of the box and is a drop in replacement for Cent, however, Alma 8 Active support ends in May 2024.
If Alma 9 is an option, support there lasts until May 2027.