More or less yes.
To be valid, a certificate need to be signed by a CA (Certification authority) trusted world wide or you need to manually install a CA and trust it.

To check what CA are installed into your Windows Computer just do the following:

  • Press the Windows key + R to bring up the Run command, type certmgr.msc and press Enter.
  • When the Certificate Manager console opens, expand any certificates folder on the left. In the right pane, you'll see details about your certificates



Attached an example of one of my computers:
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