I was using an old iPad for display but noticed today the battery swelling.
Any recommendations for a cheap Android tablet (10 inch) that's only purpose will be to show a very simple PWA?
I've found a few in the $40-$60 range but they're all generic brands.
If it shows the same thing constantly, I wouldn't want OLED.
An iPad (basic) 8th gen or newer is still supported by the next OS release and likely will last longer than a generic device.
It would likely be worth buying a tablet from a large brand with good battery controls & settings like battery life longevity management. I'd recommend using a smart outlet to cycle the tablet on and off of battery regularly in addition to using the 80% battery rules.