Technically, you could also show plugin panels via IPC (see this example code), but I’m guessing that’s not the use case you are after, so yes, commands are the way to achieve Inter-Plugin Communication amongst plugins in UXP.
Technically, you could also show plugin panels via IPC (see this example code), but I’m guessing that’s not the use case you are after, so yes, commands are the way to achieve Inter-Plugin Communication amongst plugins in UXP.