The Apple Watch has 32-bit memory addressing (and 64-bit integer arithmetic -- it's ILP32). Granted it doesn't run Linux, but it's a very very modern piece of hardware, in production, and very profitable.

Same for WASM -- 32-bit pointers, 64-bit integers.

Both of these platforms have a 32-bit address space -- both for physical addresses and virtual addresses.

Ripping out support for 32-bit pointers seems like a bad idea.