How to handle bulk update with conflicting settings?

I have a list of items, and each item has its own settings. Below is a simplified example of 2 items and its settings:

Since their is a major complaint about how tedious it can be to edit these items, we would like to add the option to "bulk update" these items by simply multi-select the items in the list and applying the change in settings to all selected items.

However, I have a bit of trouble how I should handle certain settings if they conflict between the two items. For example, selecting the 2 items in the above image would give me:

I currently decided the following for conflicting items

Checkboxes: Use Indeterminate state. I'm not sure if this is the correct usage of indeterminate though, because it seems more used in case with child checkboxes.

Comboboxes: Make empty if conflicting.

Radiobuttons: Similar to comboboxes, make empty if there are conflicting settings

Sliders: No idea what to do with these.

Additionally, some items can have more or less options than others. When multi-selected, i decided that the option is visible and disabled. Or is it better to just not show the option at all?