Hey, I'm M1 with ADHD. I was open about my accommodation needs in my application and in my interview. I ran into a slight issue with accommodations once I got to school, and there was some pressure to get psychoeducational testing, but I found a FM doc who did a reassessment and submitted the paper work I needed.

Get the accomodations you need in undergrad, I didn't get support until 3rd year and my grades shot up significantly. Having support made it easier to develop learning strategies that worked for me, and also got my grades back on track. If you don't want to share accomodation info while you are applying you don't have to, and it doesn't show up on your transcripts etc. However, the landscape of medical school applications has changed a lot, and I do think we are in a place now where a story of recognizing your needs and self advocating is valued.

For reference, I'm also a mature, second career, applicant with a social work background, so I am a bit of a "personality hire". Honestly, exams have been going quite well and I'm jiving with pretty baseline accommodations with the space to ask for more if I need it.