I was tech lead for a project that did this, about 7 years ago. C and C++ for all the business logic and core functionality. Objective-C, Java, and Qt for native bits. Worked great and was the obvious solution that allowed for shared code. I don’t see why you wouldn’t do the same thing today. The capability is still there.

I’ve lived through decades of promises of “write once run everywhere” development technologies but they have always come with significant drawbacks vs native applications. Performance, memory footprint, native look and feel, ability to take advantage of os specifics.