You can put the widgets anywhere; they don't snap to a defined grid like they do in iOS/iPadOS. If you move a widget near another widget, then macOS will suggest a position and snap them so that they are aligned. If you don't want them to snap and be aligned, then hold Command while dragging them.
To solve your problem, move all your widgets away from the left side of the screen. Drag one of them back over to where you want it, and then move all the rest over.
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Here's an example where I arranged them while holding Command.
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BTW, you can still put widgets in the Notification Center, if that's where you prefer they live.