I created a new doctype called “By Car List” and I added a checkbox (Done),
I need to add a default filter (Done = No) in the list view.
And this filter show up every time I open the window even if I remove the filter manually and refresh the page.
I think saving the filter can work here partially. You just need to click on your saved filter. But auto filter applying on open/refresh of page is something which I don’t think is possible as if you do those changes from backside and even if succeeded. There’s a huge possibility the same filter will be auto applied on other doctype which even don’t have that field (I might be wrong although but as much as I know, list view is common for all doctypes)