hi @Kenneth_Hall welcome to the forum 
please use search lot of issues have been discussed often already e.g. Upgrade 25 -> 26 and PHP Upgrade 7.4 -> 8.2 or upgrade #php74 to #php82
I’m not aware of any simple procedure of moving a server to another NC version.
I would recommend you do one thing at time - either upgrade NC on the old server to minimum version you can install on the new server (includes PHP upgrades on the old server) and move then or you do multiple server migrations doing some intermediate steps (e.g. migrate to Docker, perform the upgrades and move to a new server).