Reference:
To filter data in a canvas app, you should use Power Fx. Power Fx is a no-code, low-code, and code-based platform that enables you to build custom business logic and automate workflows in your Power Platform apps. It allows you to create custom formulas and expressions in the app using a functional language, which allows you to filter data in the app.
Power Fx can be used to create custom formulas and expressions in the app which can filter data in the app by using its built-in functions and operators. You can filter data by using the filter, sort, and group by functions, as well as by using custom formulas and conditions. You can also use the advanced editor to write complex queries using Power Fx code.