So maybe your co-worker is unlucky or you are saying this for another reason.
We don't seem to have seen a significant problem with SSD failures for Intel Mac. But all the Apple Silicon Mac has seen significantly higher percentage of SSD failures. Louis Rossmann has ranting about this for sometime already.
Not exactly the most reliable source for this kind of thing. I have not seen any hard evidence of greater numbers of SSD failures. Even if it's true that MacOS swaps more aggressively with Mx chips, 8GB of RAM is going to require substantial use of swap regardless of how exactly the OS tunes things.
All storage dies eventually. There's a huge difference between needing to replace a broken or obsolete part and needing to replace an entire bricked laptop.