Budget? Does she want a big phone or a small one?

Ofcourse, go for it

S23+

Give us more context. Ofcourse the s23 fe is better then the a54. But whats your budget? What are you going to do with the phone? Are you open to buy second hand or refurbished phones? So many questions.

11 inch is big enough. Depends on the viewing distance ofc.

Idk man, Maybe on blackfriday

My first phone was a 300 euro phone from 2019. Used it untill a couple of months ago when i bought my s23+

The company that produced it probably. Unless a different party damages it.