I sympathize with your (mother-in-law's) situation! I, too, own a Samsung tablet from that period. Have you checked whether you could install LineageOS or some

I sympathize with your (mother-in-law's) situation! I, too, own a Samsung tablet from that period. Have you checked whether you could install LineageOS or some other custom ROM on the tablet? That way, you might be able to extend its lifetime by another couple years.