Still an issue, but one I think is much harder to fix and one that Paradox have regularly admitted to (they just haven't updated the EU4 store pages).
Yes, knowingly engaging false advertising is an issue. In contrast with some of the in-game bugs, it's pretty serious too. The company is aware that it product doesn't do what it advertises and continues to advertise it in spite of that, for years. That's
The EA type patching problems DLC can solve is somewhat shady. In contrast, continued advertising of a >2 year non-feature is unambiguously dishonest and a major disappointment.
Though I do not use it myself, I have seen suggestions on the MP forum to use WINE, that apparently will let you play.
I ran the game successfully in a Steam WINE installation. Aside from a too-fast audio issue I had to mess with a little it worked. You lose some performance capability at 5 speed, and maybe 4 speed depending on machine.
I was able to play a 2-3 man MP game into the 1700's without de-sync using WINE to pretend I'm on windows. That does a few things:
- It rules out hardware/linux incompatibility for MP. If it were hardware issue it wouldn't work in WINE.
- It adds onto already-heavy evidence that cross platform MP support as-advertised is a known false advertisement. It's not like it's impossible to run 1.19 MP on Linux in principle.
- It will let you at least use the game despite the false advertising, if you're willing and able to configure WINE or use playonlinux to get it going
So Mac users really have that problem too? If so that should actually increase the chance for a fix...
We're at over 2 years now. Cross platfrom MP was broken going from patch 1.5 to 1.6 (I remember because this ruined a forum MP game I tried to join, having participated successfully in 1.5). We're on patch 1.19 now, around 2.5 years after it was broken. If this thread is ignored outright, it wouldn't be the first or tenth time.
I wouldn't get your hopes up. This has fallen to lower priority than multiple major DLC, nerfing esoteric exploits, other games, AI changes, and more. To reverse the obvious conclusion that they don't care about this issue would require evidence showing otherwise, and enough to overcome years of neglect despite being aware of it.