That’s good to hear.
I found a mention of the controller being supported better starting with Chrome 89, which I think is a bit newer than the Chromium 85 MZ ships with: https://github.com/thayallans/ds5chrome/issues/6
It’s likely technically possible to special-case this on my end if the Chromium version is too low, but in my opinion updating the runtime would be the cleaner solution since that has other compatibility benefits too.