It’s fast and it’s about as native as most apps get nowadays. Kotlin on Android or Swift on iOS still run in virtual machines with GC not unlike Javascript. Nobody writes apps in C++ either. Maybe one day we will do it in Rust when there’s ever a good mobile GUI framework.
Also by fast I do mean fast. Much better than any other PWA or website I’ve ever used and on par with good native apps. There do be some bugs, I’ve run into two and they’re a bit annoying, but I’m sure they’ll be fixed soon enough. The dev is super active and it’s open source so anyone can contribute.
Much of the time you can’t really tell it’s not Apollo and that was the best reddit app hands down.
I do have a recent iPhone though. Maybe an older or lower end phone won’t be as fast. But even so, I would still recommend trying it.