I did another SQL Server migration over the weekend that dealt with linked servers. I’ve seen all kinds of odd naming schemes and there are a few I like and a few I suggest you avoid. Don’t name your linked server for its IP address. At some point whatever is on the other end of that IP address will move. You’ll probably need to point your linked server to a new IP address but not change the name of the linked server. And then you’ve completely lost any context around this. Bonus points if a new SQL Server eventually...