Default User Agent Inludes Wrong "geckoversion" value

Currently, the default user agent of LibreWolf on Flatpak is Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:115.0) Gecko/20100101 Firefox/115.0. But true Firefox on Windows and Linux will not present geckoversion (rv:XXX) as rv:115.0. The real user agent from Linux version of Firefox is Mozilla/5.0 (X11; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/115.0, and it presents geckoversion as rv:109.0.

I found this problem when I try fingerprint test on amiunique.org. This wrong user agent is a very powerful signature of LibreWolf users, actually making them stand out among normal Firefox users.

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