The issue is not that "Microsoft bundled Teams" but rather that Microsoft came to companies like mine at the time and essentially said "We are deprecating Skype

The issue is not that "Microsoft bundled Teams" but rather that Microsoft came to companies like mine at the time and essentially said "We are deprecating Skype and we are offering this resource-hungry, bug-ridden program called Teams as only replacement. You don't have to use it, but we'll bill you for it anyway". They knew full well that the average IT department would not approve paying for a second tool and offered no "discount" if you didn't want to use it. It was take it or take it. My only complaint is that this didn't happen sooner, but I'll cut them some slack for not taking swift action during the notably-unremarkable year 2020.