My opinion: With any phone, you are going to spend most of your time in a small set of apps. As long as the OS enables those apps to perform smoothly without being intrusive, you should be good to go. There are certain platform differences that can seem like paper cuts when making a switch -> share screen, default app settings, where settings are housed (centralized in the Settings app or hamburger menu in each app), default permissions, text manipulation, and the Home Screen. There is nothing like using the device to overcome the pain of these changes. also, the good apps out there have homogenized the platforms to some extent.
I’m speaking from experience. As someone who has had iPhones since the 1st OG iPhone, I used an android device for work email for almost a year. It wasn’t easy; there were some annoyances when I switched from work to personal, regardless of direction, but I found a way to ease the cognitive load: I used 3rd party apps for most of my tasks. For example, Chrome or Firefox, Overcast for Podcasts, Pandora or Spotify, Outlook for Email, Kindle for books, etc. The good app developers do a fantastic job of smoothing over the differences between Android and iOS.
Edit: Fixed a typo
