It's not the greatest solution as you have to manually run some commands but https://support.plex.tv/hc/en-us/articles/201154527-Move-Vie... has worked for me the multiple times I've moved Plex installs.
It's not the greatest solution as you have to manually run some commands but https://support.plex.tv/hc/en-us/articles/201154527-Move-Vie... has worked for me the multiple times I've moved Plex installs.