I've recently migrated between datacenters, but not using any data center tools. Rather this is specific recreation of systems and importing of data. Much cleaner, and it becomes clear that there are advantages to data center processors and database cleanliness.
Clearly there are some changes using php-fpm8.2 vs. 7.4 and while the mariadb process has a smaller database to access it is using more ram for speed of cache. Another noticeable difference is the speed at which file security scripts run. We are now witnessing 1-2 second speeds of changing security settings on directory paths vs. the 5-6 seconds previously experienced.