In case you want to check HW compatibility - check the server vendor webpage. With your serial number, you will find server model and if ESXi 7 or 8 is compatible. They are always providing such Info.
Specify which plugins you are talking about. Often plugins are installed on vCenter not directly on ESXi.
In vCenter, there is a dedicated section called - "plugins" you will find it there.
Regarding RAID Ctrl, HBA, LAN Cards in Monitoring - Hardware Health - you will find and Serial Number or Driver version or even a firmware version. Additionally, you will be able to list via esxcli commands.