Digs here-

Here's the guy who filed this. He's a landscaper and it's not clear he's affiliated with Trump in any way. Address checks out and Testimonials for the lawncare service mention a Mike and Dave.

https://first-due-lawn-care-landscaper.business.site/

Here's what appears to be a related blog of a Tea Party member from 2009 who happens to be named Dave.

https://centinel2012.com/about/

Along with the relevant post-

https://centinel2012.com/2021/01/24/as-of-this-day-january-24-2021-i-am-a-declaring-that-i-am-no-longer-a-republican-i-now-claim-to-be-a-member-of-the-newly-created-patriot-party/

While Trump's information is listed and matches up with official FEC filings, it doesn't mean Trump actually endorsed this.

https://docquery.fec.gov/cgi-bin/forms/C00580100/1481299/

Seems to me this Dave guy is upset with the Republican Party and is trying to take matters into his own hands.