YSK: Browsing "ALL" at work might get you pulled into an office, even with NSFW off.
Why YSK: It appears several Lemmy Instances are flagged as suspicious and at least 1 instance intentionally using the name of ransomware. A couple of the big enterprise monitoring suites (Fortiguard, ZScaler) will flag your account and may end up with you being pulled into an office for an explanation, or worse.
TL;DR: Keep browsing to your local instance at work for now.
Really depends on the place of work. I work in the IT of out company and my PC isn't monitored. My door is constantly open though and there are a lot of people passing. Me looking at the screen is normal and part of my work. Me looking at my phone is always seen as me not working.
It shouldn't be. Human workers who integrate personal social habits with work processes are happier and show higher productivity.
If you're micromanaging your crew and worried about time theft then you're creating a toxic work environment and should only be managing robots. Also, your employees are at much higher risk of wage theft.