Then I would question whether the file was shared correctly by the uploader. I shared a file from my Dropbox, setting it so anyone with the link could view, and was able to download it from desktop view on mobile Firefox (in incognito mode)
There is an option to require a password to view the file, is there any possibility that that was set in your case?
Shared from a paid account or from a free account?
If shared from paid account, then tomorrow I'm going to cancel our company account as this is unacceptable, we use that for sharing files in emails (we tried to use a self hosted nextcloud but customers are too dumb to figure out how to press the download button)
Both on mobile and desktop there's a "login wall" but it can be dismissed by pressing on the X.
Still, it's a dark pattern that I don't like, tomorrow at work we will discuss alternatives as we subscribed (one single account shared between everyone) just for sending attachments with filelink using thunderbird - and with a "login wall" it no longer fits the purpose
Dropdox and Mega,nz are the worst file sharing service ever made, I don't know why people still using their service and it's infuriating when I have to download from their shitty ass website
i would make a loss because of the tax on stock trades in my country and the fee of my banks broker ☹
but, as I mentioned it was kinda cheap, so not much money stuck in it. (i only trade shares for fun. i spend the money from my gaming budget on it, since i'm not very interested in new PC and console games any more.)