@asaracst
Even with the trial version, you can activate the premium trial, allowing you to access full capabilities. Upon activating the premium trial, you can invoke your flows from the cloud after registering your machine in the Power Automate Runtime Machine portal (found under the Settings tab).
If you encounter difficulties registering or invoking your flows from the cloud, I recommend creating a new environment from the Power Automate Admin Portal, with developer environment type . Then, assign all the necessary roles(Screenshot attached) to your account w.r.t to desktop flow and machine registration, then register your machine with the newly created environment, and proceed to create new scheduled cloud-type flows to invoke your desktop flows.
I've recently explored these trial accounts and all the associated features just a few minutes ago to address your question. They are all functioning properly for me. Please feel free to let me know if you encounter any issues along the way, and I'll be glad to assist you further.
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