Moving Text Messages from Android to iPhone AFTER setup

There is no direct way except to look for some third-party apps that claim to transfer text messages.

Explore third-party applications that claim to facilitate the transfer of SMS/MMS from an Android device to an iOS device. It's crucial to be aware that using such apps/software carries the potential risk of compromising your data, as the information may traverse through third-party servers with varying levels of encryption. Exercise caution when choosing an app, ensuring that you are well-informed about how the software handles your data before making a decision.

Keep in mind that data already present on the iPhone will remain unaffected, but texts processed through third-party software may be susceptible to risks. Prioritize reading reviews and thoroughly assessing the application before proceeding with its use.

I agree, sms backup and restore works great on Android, I always thought it was on iOS too, maybe not. But yes there are many features that should be on iOS that aren't, and many that they've added recently that have no use to me at all.