We have a PowerApps SharePoint Integrated form that the currency field and formatting is not working correctly in the form. It shows the European symbol. Dani seems to have pinpointed it to sometimes after you publish it does show the $ symbol, sometimes it shows the European symbol.
In SharePoint the field is set to currency
Computer regional settings are set to Spanish Mexico
The field is set to number, we had it switched to text, but that’s when fields were disappearing for Dani, but still worked on my computer with regional setting CA.