Action Required: Update Certificate Trust Stores

I received a notification that Our new SSO Certificate will be issued from the G2 root. As such, we are reaching out to notify you that you may need to add a new certificate to your trust stores prior to Dec 1st, 2023, to avoid a service disruption.

I checked my and couple other trusted root folders and that exact certificate is already there without me taking any action.

So, is this certificate automatically stored there via windows update? 

Thanks for replies.