Working in sales... my customers often wanted to set-up video conferences to monitor projects. Every company was standardized on their ‘favorite’ system.
For me, Zoom was the easiest to work with. But customers that were heavily oriented toward Microsoft products would require us to use Teams. My impression was that Teams was a bit too complex, but I’m sure that had I used it more I might have felt otherwise.
It does seem that to get the most out of Teams you have to have the entire Microsoft suite of products.
I like to keep things simple. Give me Windows 7, Office 2010, Adobe Acrobat 10 and Photoshop CS5 and I'm fine. Skype was also simple to operate. Zoom, yes, I have that installed on my PCs now and I love it's simplicity.