If Microsoft is unhappy with 70 lines of LISP that I posted on their website, then I'm more than happy to change it. Ask them to reach out to jtunney@gmail.com
You have time to react to serious issues, including after accidentally deleting the first few emails. Trademarks are different from patents. Pre-grant and/or post-grant opposition for a single generic word is a relatively easy way to kill it.
'copilot' https://uspto.report/Search/copilot `269 Results`
In related note, Microsoft once tried so hard to trademark "Bookself" (type code GS0091) https://uspto.report/TM/74567299 `Dead/Cancelled`