Is there a way to use Adobe Scan from a computer?

Not the scanning part, Adobe Scan is phone only. But everything you scan with it saves to your Adobe cloud storage, so on the computer you can sign into Acrobat Reader (or the web version of Acrobat) with the same Adobe ID and the scans are all sitting there under your files. If what you actually want is to scan paper on the PC itself, that's a job for a flatbed scanner and the Windows Scan app, not Adobe Scan.