Scientific clusters have more options though, as Rocky/Alma and other alternatives to RHEL are available without dealing with "this distro does not ship FIPS-140-3 certified crypto" or similar.
The problem is, scientific software can silently error out in many ways (like slightly lost accuracy), and detecting and fixing those will take some time.
Considering some of these tools are developed over (almost two) decades, there's a lot of verification we have to go through.
... I can imagine.
CentOS just had a lot more testing being done by vendors. We still regularly hit problems with, e.g., Lenovo LESI being not aligned with our Rocky systems for many parameters.