Considerations to move from Apple iPhone to Samsung

Very important! Don't intend to have the same experience as you have in your iPhone, every person who crawls back to iOS after moving to Android is because they expected to have the exact same "way of doing things" in Android, they are different devices, with different Operative Systems and distinctive features all together

Cameras: Subjective, some people prefer Samsungs, other people iPhones. Technically and personally, I do consider Samsung takes better photos, but the overprocessing in some scenarios is very invasive changing the "naturality" of the photo.

Photos: Do yourself a favor and use Google Photos or Ente.io (referral code for 10GB free ME4ZNF).

Ecosystem: You can do the same ecosystem with Samsung as you do with Apple, but if you have several Apple devices you will need to replace those, and that, cost a lot of money, may be too overwhelming.

Apps: No every iOS app is available in Android, as not all Android apps are available in iOS. Also, in Android, some apps are not available in the Play Store, but you can directly download them from the developer, community, GitHub repository.

Battery: I have always considered this extremely difficult to say, it all depends on your usage and apps you use. For me, both devices last a day.

iCloud: You will need to find alternatives too all those services, for normies, I would say Google is the easiest one to migrate to. iPhones and Samsung Phones integrate very well with Google services ecosystem. If you're thinking of being more privacy minded, then you have Proton Mail (and all their suite), Fastmail, Microsoft365, Hey Email, and many more.

Domotics: There are devices (smart door lock, windows automation, garage door) that only run in one ecosystem or the other, this is a restriction imposed by those product businesses, for example, my Smart Kwikset door lock can't be used, configure, linked to nothing more than an iPhone. This is also important for HomePods, they only work and can be configured with an iPhone. Same as Apple, Google Home (the equivalent) or Alexa (in my humble opinion, they are less superior than Google Home), will work with some services and products, one example is choosing your default Music Services, some are available in HomePods but not Google Nest (Nest is the formal name for Google Speakers).

Insurance/Extended Warranties: Won't lie here, unless you live in the US or very few countries you are better off with Apple Care+, Samsung Care+ is extremely limited and is region locked, while Apple has worldwide coverage.

If you decide to move to Android/Samsung have a lot of fun, and again, come with the mindset that things will be different, then you will succeed in the migration.