I’m very very curious to know what it is you’re doing to experience this: I’ve used Debian and its derivatives for 25 years now. On desktops, laptops, and servers. x86, x86-64, and Arm 64. I have never had a segfault with APT. Not a single time. Problems with dependencies or such a few times, but I don’t recall APT ever crashing on me.

Please, share more details.