It depends on your threat model. Using tor via a know vpn endpoint does make you stand out and can be used to profile your traffic. One of the main points of tor is that all users look exactly the same.
If you have e.g. one user out of a 100 using a vpn endpoint instead of some residential ip address that user immediately becomes a much more interesting target. There is information floating around in the web that state actors control both entry and exit nodes.