If it helps in anyway, my daughter manages a home, the people that live there have a huge range of activities. Just yesterday she had birds of prey in to visit. She’s even taken a mini pony up in the lift to see the residents. They bake, they celebrate every success of each person. Visit several homes, ask to hear about their activities programme, how they’ll promote your mums independence, what the ratio of staff is to residents. Also check they don’t run on “institutionalised” type care, so all residents up at X, bed at Z, they are adults and should be able to choose.