MapleStory Not Working (216150)

Compatibility Report

• Name of the game with compatibility issues: MapleStory
• Steam AppID of the game:216150

System Information

• GPU: Intel(R) HD Graphics 520 (Skylake GT2) x86/MMX/SSE2
• Driver/LLVM version: 3.0 Mesa 18.0.5
• Kernel version: 5.15.0-34-generic
• Link to full system information report as Gist: https://gist.github.com/arnonsur/ff101482790483f1dc8dca2eaa0cc9bb
• Proton version: 3.7-6

I confirm:

• that I haven't found an existing compatibility report for this game.
• that I have checked whether there are updates for my system available.

steam-216150.log

Symptoms

When I launch the game I am prompted to put my Nexon account information but I can't do it as the email box doesn't respond to me clicking on it. The text is all messed up (I only know it's the email box because I've seen it on windows). That's even before getting to the game itself, which I heard from others doesn't work, but haven't personally been able to reach that point as I can't get passed that initial window.

Reproduction

Just launch the game and you'll see.

No source file or test is identified in the report. Start by reproducing MapleStory (Steam AppID 216150) with Proton 3.7-6 on the reported system and inspect steam-216150.log. Done means the Nexon login window renders correctly and the email field accepts input, or the compatibility limitation is clearly documented.