I'm also on Windows 10 v1703 because newer versions of the OS (well, beyond 1803) change the look of Explorer (to support dark mode) and how Windows handles dark/light mode between system/apps. If you're confused, they're displayed in the order I listed them above. The downgrade in later Cent should be obvious even without labeling due to the aberration artifacting. Here's a comparison of my current Vivalid version, the latest Cent, and 3.0.4:

Yes, Cent still has an option to disable directwrite, but it changed after 3.0.4, and that change was for the worse. The color/contrast Cent 3.0.4's theme is great, the look of it is great, and the GDI rendering is way better than any version of Cent passed this point. Perhaps I have skipped Firefox too long to not realize how sluggish current Chromium kernel is.I'm still over here using Cent 3.0.4 (from 2017) with multiple websites broken (notably logging-in, like on Steam, Twitch or Disqus to name a few). But the sound quality on Firefox is not as good as catsxp. I found Firefox is much smoother in graphics than catsxp. Given there is no changes in code, I guess there is something changed on your development environment that you didn't notice. Update: it's weird why the original 3.3.3 worked but your newly re-uploaded 3.3.3 doesn't work. But it crashed for me regardless of having -no-sandbox or not anyway. So, it's very likely I don't need -no-sandbox at all.

Btw, I have never seen the error 'GPU process launch failed: error_code=2' on this computer. P/s: you tested on a VM, my computer is a Intel(R) HD Graphics 4600, maybe this makes a real difference.

Your newly re-uploaded 3.3.3 doesn't, though. 111 based original 3.3.3 used to work fine too. But 110 based versions like 3.2.4 that still being able to download from you worked fine. It's very likely the faulty versions used to run on this computer wrote something wrong into it. But I found even though I always use portable version, catsxp littered through out Windows Registry.

Catsxp portable