Hi @Sandy_Friedman, thanks for reaching out!
These are great questions, we currently don’t offer a feature to track and see upcoming PTO your team planned in Google Calendar. You can try one the time tracking integrations, please find the full list here. We also have two product feedback requests related to these topics, I recommend you to upvote here:
You can also use the Vacation Indicator feature in your profile settings to show your team when you are away.
I hope this helps!