Here’s a report from the field.
I support a client who who has long been Fujitsu scanner user, including through Fujitsu’s surprise abandonment of ScanSnap Manager in favor of ScanSnap Home. The recent return of SnapScan Manager came as good news.
This August I was tasked with scanning many estate-related documents and pictures at a location 95 miles from my office. I bought an iX1500 and downloaded ScanSnap Manager to my Office Catalina system with good results. I then installed ScanSnap Manager on a 2017 MacBook Pro (my Big Sur Beta test machine). Scanning was done at a remote site where my iPhone hotspot provided wireless connectivity. I scanned a few hundred pictures and dozens of documents with no problems. I can recommend this solution.
I have not tested the PDF software included, since I have Adobe’s Creative Suite on my office machine.