OPPO Find X9 Pro or an alternative?

My boyfriend is looking to get a new phone and the two most important factors to him are customisation options and cameras (as well as being an android). We’re both skeptical of the Samsung s25/26 Ultras due to their smaller batteries. From what I can tell the OPPO Find X9 Pro has one of the best cameras on the market, a good display, a good battery, actually fast charging, and I saw someone on Reddit say it’s got good customisation options? What are your opinions, go with the OPPO or should we consider alternatives? Much appreciated