The latest ARM Cortex CPUs (models X2, A715 and A510) drop 32-bit support. Qualcomm actually includes two older Cortex-A710 cores in the Snapdragon 8 gen 2 for 32-bit support. Don't know much about Apple Silicon but didn't they drop 32-bit a couple of years back?
Google has purged 32-bit apps from the official Android app store, but as I understand it the Chinese OEMs that ship un-Googled AOSP ROMs with their own app stores haven't been as aggressive about moving to 64-bit.
Some don't, but a phone does.