"I'm taking PTO and I don't need to justify it or tell anyone why" should be the process.
As your co-worker or manager, I don't need to know that you or your kid or your dog or your parent is sick, or if you're really just sick of working and need some time to zone out.
If someone is taking so much PTO that their work suffers, address it in private with HR.
> We’ve added more support for all of our employees and encourage everyone to have open discussions about the challenges they’re facing
Please don't.
I don't need to hear my co-workers sob stories, and I don't want to burden them with mine. And I certainly don't want to feel compelled to overshare.
Offer private counseling through HR or the health plan.