Mine does this as well. I have not found a fix, but a workaround: in the settings, change “navigation mode” from 3-button to Gesture. I had to do this to save my profile info, the navigation buttons were covering up the “Save” button. Then I changed it back, because they usually don’t get in the way and I hate gesture navigation.

I hope to get a GrapheneOS or something soon to replace this old Samsung/Google thing.