I feel this is an issue that has been a feature of universities for years
As a northerner going to an RG uni was socially difficult experience and I did try and suppress my accent.
I didn't mind friendly banter based on accent but did feel my background precluded me from certain peer groups.
www.theguardian.com/education/2020/oct/24/uk-top-universities-urged-act-classism-accent-prejudice?CMP=Share_AndroidApp_Other