I prefer to have my taskbars on the left hand side, vertically. With landscape monitors, horizontal screen real estate is plentiful, while vertical is rare and precious.
My new work PC came with Winders 11. Which I promptly moved to the hard drive (Thanks, Clonezilla!) and installed Fedora* to the SSD. I pretty much only boot W11 for monthly patching, but the inability to move the taskbar to the left side irks me every time. I would have just deleted Winders entirely, but then Microsoft would have won by getting paid for a license that was wasted.
And I might want to play a game at work sometime, after all.
* Because I'm a Red Hat CentOS Rocky Linux admin.