How to remove history suggestions?

[Sennnns]

Hello everyone, I need help.
I just deleted my whole history and this still shows my recent searches.
When I go in my history, it is all cleared, only the search bar isn’t.

[Mattches]

I believe this is because you’re signed into your Google account, and those were your previous searches recorded in Google. I’m unclear about which data setting needs to be cleared to remove all of these. But I do know that you can highlight an entry and click the x to remove the suggestions: