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Slack Vs Microsoft Teams — Which App Is Better For Your Privacy & Security? [Mozilla Foundation]
(foundation.mozilla.org)
This is a most excellent place for technology news and articles.
Exactly, assume your employer can see everything you do on the company network, software, and devices. If your employer regularly checks on employees this way (that is excepting extraordinary circumstances) and uses it against employees this is an indication that they are a bad employer and you should find one that trusts their employees unless proven otherwise.