Tools and settings that filter and block explicit or inappropriate content from search results.
Lan, not workplace, educational, organizational. I have the power :-) And I didn't set this strict safesearch up.
Sorry for slow reply and for the fact that I don't know what else you can try except that since multiple browsers and several search providers are involved, you might dig into router settings or contact your ISP.
And... Long shot but if this problem doesn't occur with the browser in Private/Incognito mode that suggests that a browser extension or files in the cache are involved. Try clearing the cache.
Don