I've probably used a dozen, depending on who initiated the call. I've had great experiences with Blue Jeans, Amazon Chime, Microsoft Teams, GoToMeeting, Google Meet, YouTube Live and Skype.
My bad experiences have come with Slack. It just seems to drop or malfunction in some other way.
My horrid, shocking experiences all came from Zoom. Last week I spoke virtually at an event sponsored by Samsung and we got zoom bombed with drawings of penuses, photos of gross naked fat men, flooding of the chat channel with horrible epithets, etc. Samsung had a dozen moderators trying to keep it under control, but they couldn't.
On top of that, sometimes when I advanced my slides zoom would notice and half the time it would display the current slide on my monitor but not on others.
There is some justification to consider Zoom malware: