As a linux user, stuck in microsoft's 99% world, using their apps are painful. Use of standard browser plugins like noscript and ublock origin, they constantly complain about insecure sites using office365, forcing me to whitelist and/or bypass xss security notices constantly otherwise. Same reason IE was the best malware delivery engine for 25 years, now their chrome-based edge, they _do_not_ get browser hygiene, security, or why people would want to use any of it, still.