Universal Launcher WearOS watch faces support

Hello. I have installed Universal Launcher in my smartwatch (Kospet Prime) that would make compatible WearOS watch faces in my smartwatch.(I don’t know yet what WearOS versions but I guess it should work any WearOS version).

My question is, how facer works? Should I install facer app in my phone or in my smartwatch? In case to install in my phone, how do I transfer watch faces? Will it appear in watch faces smartwatch menu once I have transfered?

Thanks in advance.

has this question been answered in another thread? At least I think I saw it…