I would put all bars at the top. On a touch-enabled screen it's much easier to touch something at the top than something next to the keyboard, so I move the taskbar to the top on all my Windows two-in-ones.
Why not at the side, though? Better use of the vertical space and no issues with touchscreens (interactable items on top, hand reaching from the side). That's how I do it on every desktop/laptop machine I own.
Shout out to https://github.com/valinet/ExplorerPatcher for forcing this behavior even on Windows 11.