I look at Rust more as an FP lang than an OO lang. By FP I mean: you have data and logic; never a combination of both (classes/objects).

Java makes this king of separation between data and logic really hard.

Kotlin came to the rescue for us. It allows us to move our Java/OO codebase in a slightly more FP direction: uncouple data and logic, immutability is preferred, no (or very little: yes looking a you shitty "platform types" in Kotlin) implicit nulls.