Relume has different parts. The AI features are optional but no doubt transfer your input data <i>somewhere</i>. You dont need to use those parts, though
Understandable - it would be around knowing where those AI features and input data is stored.
DM he'll be able to tell you. Looks like it's not itemised in their terms or privacy policy, yet - it probably should be. (My guess is they are probably using a US-based service like the chatGPT API). If you're working with a nervous DPO or in a highly regulated environment then you're not going to be allowed to use it.