Unfamiliar file, Unable to open and uninstall

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This looks very much like this

Unknown file, Can't open, Can't remove

Hi everyone o/ Ubuntu 20.04.01 Trying to run Linux adapted Gog games with varying success. In with the Applications I’ve got a (no icon) file called “Manual” from a failed game that can neither be opened nor removed, see attached image. It irks my need for tidyness and i want it removed. Can someone give a lead on how to get rid of it? [Screenshot from 2022-11-25 15-17-45]