https://bugs.winehq.org/show_bug.cgi?id=57602
--- Comment #2 from nicoco@nicoco.fr --- I submitted an appdb entry when it was working, it was wine 9.5.
However, the Winamax client is frequently updated too and AFAIK there is no way to download older versions. "Visually" the software has not changed much since my appdb report. It is still an electron app.
I don't know if it's any use, but they also provide a Linux binary of their electron app... but there is value in using the windows version with wine, to allow using a companion app that is windows-only (and works with wine).