windows – Unlock GPO enabled “Lock all taskbars” on one PC

I am facing strange problem here. We have GPO that disables “Lock all taskbar” function in Windows 10. One user somehow managed to resize the taskbar and I want to fix this but its giving me a headache because I don’t want to disable this policy for all domain users so I was thinking if there is an option to disable this policy as local gpo. Looks like it’s not working so I tried a lot different methods – searching for a register to disable this policy didn’t work as well because I just cannot edit the registry found in here:
HKEY_CURRENT_USERSOFTWAREMicrosoftWindowsCurrentVersionPoliciesExplorer called LockTheTaskbarand it returns me an error *Error writing the value's new contents*
I am feeling a bit desperate about this problem what seems not a really like a big problem.

I tried easy way of course just to place this PC in OU where this policy excludes. Did a force gpupdate, multiple times restarted machine and no updates. I can confirm that this machine is in our network

Possible to have different taskbars on different windows 10 desktops?

When creating different desktops in Windows 10 (WIN+tab) it seems you can only have one taskbar across all desktops.

Ideally I want to have a personal desktop and a work one which have different items pinned to taskbar.

Is it possible to configure the virtual desktops in Windows 10 to have different taskbars?