How should you deal with someone crying at work?

I’m going to start this with two non-sequitor stories, then try to answer the questions at hand herein:

• Couple of years back, maybe a year past getting divorced, I was low-level on the client side — meaning I was not bringing in a ton of income — and I was able to finish work early some days. So, periodically I’d go to the bar and talk to some derelict guys I knew there, and by “derelict guys,” I mean “one of them made $205,000/year and was still at the bar at 1pm.” I got a little toasted at the bar this one day, opened LinkedIn to look at my notifications, and just randomly decided to post “Have you ever cried at work?” I went home, made some food, watched true crime, passed out on my couch, woke up, walked my dog, etc. It took about six hours for me to look at LinkedIn again. That post had 500+ comments and like 17,000 “impressions.” People were going nuts telling me “YES!” with a few “NO, I WOULD NEVER!” So clearly this topic touches a nerve.
• That whole sequence caused me to rewrite an article I had done once on whether it’s OK to be emotional at work.

The “modern moment”

Even before COVID, we had increased examples of burnout, emotional exhaustion, loneliness, stress, and the like. Now, it should be noted I think all these things are bad, yes. But I don’t necessarily…