How to remove this app?

[Hunter55]

I installed an app called files to see data folder in android 11 but after i uninstalled that app it is still in my phone what should i do to remove it?? And there is not uninstall option as you can see

And also this app set itself to default now when ever i wants to upload new thumbnail for youtube this app open ups instead of gallery 

HERE IS MAIN FILE APP WHICH CAME WITH OS

[VedantKalore]

Cool 😎

[Kawsar4s]

This is system apps, you can't uninstall.