Are you using any extensions? If so, have you tried with them disabled?
Does the issue occur in a Private window?
Does the issue occur if you create a new profile and try it in that profile? (Make sure your original profile does not have any open windows; only the new profile should be open.)
I wasn’t sure what you meant by this. Do you mean you already have multiple browser ‘profiles’ and the same happens in each of them? (In which case, probably no point in creating a new one to test there.)
Is any antivirus or other security software (besides MS Defender) installed? If so, does anything change if you temporarily disable it?