It's something I completely forgot was a thing as it's not something we see much of anymore.
These should help.
https://knowledgebase.frame.work/en_us/how-do-i-replace-the-rtc-battery-in-my-framework-laptop-Hk406Lc1t
https://knowledgebase.frame.work/en_us/my-laptop-is-not-powering-on-ryQLXvQkt
Sorry about the delayed reply.