any advice for interviewing for Cleveland museums?

This might be the wrong subreddit so i apologize in advance, but i was wondering if anyone in this sub has ever worked at one of the museums in Cleveland (specifically The Cleveland Art Museum or The Cleveland Museum of Natural History) and if they had any advice for interviewing/in general? I’ve worked retail before (3 years) and have taken both a summer Archiving/Gallery Assistant internship at a local museum and a semester’s Gallery Assistant internship at my college, however I’m aware I’m still a little under-qualified and wanted advice.

Also wondering if you have worked there, how was the upwards mobility? Was it ‘easy’ to work up to another position, or was it difficult to earn promotions? My retail job was heavily understaffed so getting a promotion really only involved waiting out the months before they deem you good enough to close/hold a key lmao.