i don't think i understand the question?
you send messages with components, you are subject to the message post ratelimit
#Rate limit on slash commands and specifically buttons.
subtle badger
on each button press you will receive an interaction, which you can respond to
you can have 5 action rows with 5 buttons each, per message
if that answers it
but that's not a rate limit, that's a limit per message
adding a reaction hits an endpoint, which is rate limited
you send components within the message payload, so you only hit the endpoint to create a message