I am Polish, so it’s not that hard for me :) But I’ve made a huge mistake of not learning where to put an accent (ударение) on each word, so my pronunciation might be way off for some words. Also I try way too hard to make sentences that make sense in Polish, but in Russian they might sound weird. Lack of practice, I guess. But I definitely see progress over time when I talk to native speakers (Ukrainian refugees mostly).
I enjoy YouTube Music, because it is much snappier and better than Spotify, but there are some things that just make no sense, and I wonder how are they not spotted by not even a single dev.