I tell people the best way to check is via browser. If movie/show is 480 in browser, SF won’t get the key(s) for 720 or 1080.
There are, believe it or not, movies in 720 and 1080, in movies with ads, via browser, and then SF gets the keys for it and downloads at that resolution.
As for availability of other downloaders, downloading, none that I have seen even download at all because of the DRM.
There was one for a while, a downloader, but that also could not get the key(s) for the higher resolutions.
Now it doesn’t get them at all.
And any type of recording/downloader should be limited to what a browser can get.