Bridal shop accompanies

Hello brides!
So now I have to question of the year! I want to share my experience with y’all know your opinions. Today was my first visit to a bridal shop. I knew I was not going to buy anything because I want to check at least a few places before committing. I took my mom and future mother in law. My mom was exited and she liked every single dress lol But my future mother in law was literally a Karen with the associates there and criticizing everything later on with her friend over a phone call. “ … of course I didn’t let her pay for that dress, that’s bs we can find cheaper…” was one of her simplest comments. I love her and she’s great but when it comes to dealing with things she’s the worst. At least I don’t like that pressure, controlling mode, it makes me uncomfortable. This is a time of my life that I want to enjoy without bitter moments. Do you think I should still bring her with me next time? Should I discuss it nicely with my fiancé? She literally is ready to make an appointment herself to go shopping and I don’t know how to approach her with a “I’m only coming with my mom this time”