I'm aware of why it happens, but the net effect is the same. No device powered by AA/AAA is in practice going to be able to detect battery charge level correctl

I'm aware of why it happens, but the net effect is the same. No device powered by AA/AAA is in practice going to be able to detect battery charge level correctly. Combine that with the annoyance of separate chargers versus integrated USB-C, and the result is that I never want to use non-integrated rechargeable batteries. (In practice, I also prefer to avoid devices that use AA/AAA/etc at all, for some of the same reasons.)