Hey there K0T4R0. Horizon Workrooms is still in beta-testing so we apologize for the hassle, but please try this fix below and let us know if it works.
Hey K0T4R0, we're glad to know you were able to access Workrooms! Let's see what we can do about setting up Remote Desktop. Does the connection cut off while you are trying to install Oculus Remote Desktop?
Also, regarding PC specifications, please note that if you use Apple/Mac, you must use MacOS Catalina (10.5) and Big Sur (11) and you'll need an Intel Processor. Currently, customers using M1 processors or MacOS Monterey will be unable to use their computer in Workrooms.