Ensuring consistency in jemalloc version across Ubuntu distributions with Varnish 6.0 LTS

[fabianonunes]

Varnish package for Ubuntu 18.04 uses jemalloc 3.6.0 while in Ubuntu 20.04 and later, it uses jemalloc 5.2.1. Given that the Varnish 6.0 version is a long-term support version, would it not be better to use the same version of jemalloc (a critical component) regardless of the distribution version in order to ensure consistent behavior across different systems?

Since the version of jemalloc in the repositories has been updated to 5.2.1 in Focal and Jammy, is it possible to perform static linking during the build process in order to maintain the jemalloc 3.6.0 across different versions of Ubuntu?