By the time something breaks, you’re so far behind in tech that you’re not buying parts for it anymore. I used to be in the “must be able to fix/upgrade” and then realized in practice it never happens.
I've upgraded my desktops more with GPUs and power supplies accordingly, but old laptop SSDs make fine backup enclosure drives (no I haven't seen them lose data when unplugged) and upgrading RAM for larger models on a AMD Zen 2 laptop worked pretty great for me. None of these were needed, they were just nice to be able to do mostly before the higher RAM prices started.