The Linux ABI stability is tiered, with the syscall interface promising to never change which should be enough for any application that depends on libc. Applications that depend on unstable ABIs are either poorly written (ecosystem problem, not fixable by the kernel team, they’re very explicit about what isn’t stable) or are inherently unstable and assume some expertise from the user. I’d say the vast majority of programs are just gonna use the kernel through libc and thus should work almost indefinitely.
The Linux ABI stability is tiered, with the syscall interface promising to never change which should be enough for any application that depends on libc. Applications that depend on unstable ABIs are either poorly written (ecosystem problem, not fixable by the kernel team, they’re very explicit about what isn’t stable) or are inherently unstable and assume some expertise from the user. I’d say the vast majority of programs are just gonna use the kernel through libc and thus should work almost indefinitely.