I did this half a year ago and it was fine for me. One of the benefits is of course privacy. For instance, I noticed that ads get completely out of touch which proved to me that I'm being tracked less.
Also never have that feeling anymore that my phone is spying on me.
Any iPhone user with a measure of privacy knowledge will experience the same.
I'm using NextDNS for DNS level ad blocking as well as iOS built in tools, and I get ads for women's hygiene products (I'm male), travel, dining, server parts, cars, and everything in between.
The main difference between Android and iOS is (or used to be?) that Android typically phones home with everything, frequently visited locations, calendar appointments, voice commands. On iOS most of that runs on-device. Siri voice to text/text to voice runs on device, various "ai" things in photos runs on-device, frequently visited locations are device local.