most dommes do not seem to record sessions, but with the prevelance of onlyfans, Twitter, etc. maybe they do record parts of the session.

You might be okay with this. And I'm talking about a situation where you clearly know they are filming. I am not discussing hidden cameras as I hope that never happens to anyone.

If you value privacy and think you are protected by only speaking without appearing on screen or you're being masked/hooded and speaking, reconsider things.

Technology likely exists now and will certainly exist in the future to detect your specific voice. If you wouldn't want anyone to know you session, don't let your voice during a session come back to haunt you when future technology scans through all of the internet and can show you sessioned.