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Disable *part of* touchpad on Win 10

Due to the somewhat questionable placement of the touchpad on my ASUS ZenBook device I’d like to disable a certain part of it. Is there a way to do it?

Please note that I am not looking for ways to disable my entire touchpad, just a part. Please also note that I do not want to apply any physical modification of the computer (like putting on a tape).

EDIT: I’ve just found this part of the official Win documentation which explicitely says it is possible to define ‘curtain’ regions on a touchpad in the registry from where no input is accepted. This is exactly what I was looking for so once I figured and tried out the exact solution I’ll post is as an answer.