There is a workaround on Android that I've been using because I've also been asking for this common sense feature for years. You can use the duplicate feature which creates a duplicate list including everything checked off that hasn't yet been cleared/ deleted. This duplicated list will now appear at the top and you can go and delete the original that is further down the list

There is a workaround on Android that I've been using because I've also been asking for this common sense feature for years.  You can use the duplicate feature which creates a duplicate list including everything checked off that hasn't yet been cleared/ deleted.  This duplicated list will now appear at the top and you can go and delete the original that is further down the list