I need to migrate a WSE2012R2 to a new WSE2022 (Dell). Do you have any guides / tools for this? The old server will be removed from the domain/network one the new server is the DC.
You should do that with How to migrate Windows Server Essentials 2012 R2 to Windows Server 2019 Standard, Datacenter or Essentials (server-essentials.com). There is hardly a difference between 2019 and 2022 from a migration standpoint and if you have issues just ask.