Just for the record: IMDb is no authority when it comes to person names, but they are often a good starting point. Here it appears that she is now officially (professionally) using Jennifer Chambers Lynch and that's the way to go here on TMDb. See for example the latest news about her from August of last year. In each article she is referred to as Jennifer Chambers Lynch.

(Note: social media could be a hint as well, but she seems to using Jen Lynch there so we'll stick with the current one.)

All her most recent credits are Jennifer Chambers Lynch. I thought that was implied. Sorry if I wasn't clear enough about that. I mentioned the news articles simply as extra proof of that.