Hi, no this is not normal. It should only ask for the language once. Then it sounds like my suspicion could be correct and there's something wrong with your save files, so you would need to find the folder I mentioned before. Hit the Windows button and type "%APPDATA%", that should lead you to that folder. Then proceed to click "renpy" and delete the "Taylor_1_1_0" folder in it. For the commercial, that is normal. And just a correction, Taylor is not a girl; they're non-binary and they use they/them pronouns. Hope this helps!
Edit: I re-read your comment and I noticed that I misunderstood the commercial part. Could you elaborate on what exactly did Taylor watch? At this point, I think something might have went wrong when you were downloading the game.