I had the same issue this that site. I think it is caused by ad block. I browse the internet with Firefox that have ad blocking addons installed, but always have Chrome installed without any adddons to test sites just in case. And on chrome it worked OK.

But that's the literal point of WebUI of any program. To make it possible to connect and manage the program from any device from the remote machine. And there is a reason why most developers choose to use WebUI - you don't have to create multiple cleants for every OS and every internet connected device has a web browser. In fact web browser can be considered the client in this scenario.

What could be the reason why anyone could be against WebUI? I can only think of one advantage of native client that has to be installed is that it would make of possible to associate torrent files and magnet links with it.

And lastly, if you would search for qbittorent remote client most likely in top 5 results you would find electorrent. I haven't tried it but at least description claims that it can be used with qBittorrent.

Edit: heh it seems I managed to reply to my own comment.

qBittorrent-nox is as separate as you can get. It can be run on the server without GUI. It also provides WebUI, that can be modified if you wish, but you don't have to use it. Moreover, most (if not all) settings can be edited through the text file and torrents added using CLI.

qBittorrent, when Web-UI is enabled (doesn't matter if it's nox or not), provides and API too. IF you have a client you can connect and manage everything using it. However, the only clients I know are for android.

You mean something like running qbittorrent-nox and connecting to it using web ui?

So you have two separate LAN networks. Look into that second router if it can be made to work as access point. That would solve your problem.

Again, I haven't tried it, but most likely those moded apks re-enable ability to clear the data.

Have you checked in mobilism? I searched for it and found some releases and bunch of (paid?) skins for it? I never used it and heard about it just from your post, but from what I gathered from releases on mobilism that even modded versions are trial ones and you have to clear app data every 15 days to reset the trial. The catch is that app has backup/restore function that does not work on modded versions for some reason.

On not that related note. mobilism policy is quite strange. It seems they allow some "trial" versions but not others. I managed to crack an app that had only a trial version, that work for 24h and then would locks the UI and asks user to buy a pro version. You could clear the app data and use trial version for another 24h, but every time you would have to go through short setup that becomes tedious fast. I simply removed that time check and in my opinion for all intent and purposes it became a pro version. They removed the app for being a trial version.

On the other hand you have Great Chinese Famine, Tiananmen Square massacre and more recently Uyghurs concentration camps and most likely genocide and that's only China.