Hi thanks for reaching out, I'm Arlene an Independent Advisor.
To completely disable file grouping in all folders and dialogs in Windows, open any folder, right-click on empty space, go to “Group by” and select “(None)”, then press Alt + V, Y, O to open Folder Options, go to the View tab, click “Apply to Folders” and confirm with Yes, repeat this process in each folder type (e.g., Documents, Pictures, Music) to apply the no-grouping view everywhere.
Hope it helps.
Warmly,
Arlene D.