I run flood together with qbittorrent, looks great everywhere.

That’s the main reason I switched to qbittorrent; you can use themes and it works better than anything else on phones that I’ve used.

Vuetorrent custom UI is the the best, desktop or mobile alike. They should adopt it as the default.

You can install a custom web UI.

https://github.com/qbittorrent/qBittorrent/wiki/List-of-known-alternate-WebUIs

I did this a while back, and while the alt I tested was great on mobile it didn’t offer the functionally I like to use with the built in UI.

I wanted to split mobile/desktop traffic, which I imagine is relatively straightforward if you have a decent amount of web dev experience, but alas I do not.