I backported Andrey Kudinov's suggested change (replacing Ubuntu's openssl3-compat.patch with gentoo's version) and built a transmission package in a PPA for jammy (Andrey's PPA only has packages for kinetic and lunar).
I've been testing the patched transmission-gtk for the last 24 hours and the memory leak is gone.
I backported Andrey Kudinov's suggested change (replacing Ubuntu's openssl3- compat. patch with gentoo's version) and built a transmission package in a PPA for jammy (Andrey's PPA only has packages for kinetic and lunar).
I've been testing the patched transmission-gtk for the last 24 hours and the memory leak is gone.
I'm attaching a debdiff.