Been trying to remember if there’s an episode of a podcast I listen to that dealt with this (the modern mann, named for the host, it’s not male-focused, there’s a segment where Alix Fox talks about sex-related questions), and I think there’s a couple that are related but not precisely.
Communication is definitely one of the things I know have been brought up as very important. Setting expectations and boundaries.
This may be one of those topics I think you might have to browse reddit to get a lot of experienced/detailed answers for - /r/EthicalNonMonogamy would be the place to search, probably.
Is a cooking method from the 70s really… futuristic?
Not saying it isn’t worth it, though.