I never had an issue with Wio in AED, GBP or Euro for my business account with significant monthly volume as a resident of Dubai.
Personal banking, only issue I get occasionally is that Mashreq Neo seem to do maintenance every few months and the debit card stops working during the maintenance period.
For this reason, I requested to open an account with ADIB (personal), i applied late Tuesday night, had approval Wednesday morning and card and pin delivery today.