Not really. It has a pretty bare bones OOP (single inheritance, interface), primitives and objects, generics and pretty much that's it.
replyNewer features fit very nicely and didn't increase the language surface (records are just a normal class with some methods auto-generated, while sealed types are just a restriction on who can subtype an interface -- and yet these give full ADT support for the language that improves readability and type safety).
Annotations add a seemingly infinite amount of new semantics. You can’t predict anything with confidence just looking at the code without also studying the annotation processors in depth, which regular Java tools don’t help you with.
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