Upvote:1
There's no electronic record, so indeed, if you never got an entry or exit stamp for a specific stay, then that stay essentially "never happened".
As such, you can safely return to France without delay, even with the COVID-19 restrictions since you're the spouse of a French citizen.
However, if arriving directly from the US, one normally needs a negative COVID-19 test taken within 72 hours of entry. Not sure whether being the spouse of a French citizen exempts you from that.