My previous job was tech support for multiple companies. One of our clients was using Salesforce. Another client used Jira.
A handful of clients were using their own Teams to which I had to connect or run using Citrix and Pulse Secure/Ivanti. Sometimes I had to juggle between three or four Teams.
I'm so glad I quit. I can only hope my next employer won't use Teams, but I won't hold my breath.