I just searched for this topic as this issue only started happening recently despite me not making a settings change on my end. I actually like that upcoming meetings are being populated in Hubspot automatically but totally hate (yes, hate!) that I can’t add notes to a past meeting without sending them to the attendee(s). The recommended solution of using the Note button isn’t consistent with how many of us use this option which is typically for information unrelated to a call or meeting. That’s the whole point of these different categories and the powerful filtering tool.
Would be great to hear what a proposed fix might look like from HubSpot’s end even if you aren’t ready to roll it out. Let us help you first confirm how your plan to solve this aligns with our actual pain. My suggestion would be to add a button that allows the meeting record to be saved without sending.