The thing that people complain about most when it comes to using DAWs on Linux is that 90% of the plugins in the world are not available (at least, not without some relatively technical magic such as yabridge).

It is therefore quite curious to see people get all excited about a DAW on another "platform" where at least 90% of the plugins in the world are not available, and in all likelihood are even less likely to ever become available than they are on Linux.

There's certainly a role for a tool like this in education and for people who so far have no realized that they really need to have Pigments or fabfilter for their project. And yes, people do exaggerate the extent to which a specific plugin is needed. Nevertheless, the lack of ability to run essentially any of the existing 3rd party plugins would, were it a native DAW, be viewed as completely crippling.

The webaudio modules "standard" offers some hope here, and I suspect that within 2-5 years, plugin toolkits like JUCE will allow you to build not just as "windows/VST3" or "Linux/LV2" or "macOS/AudioUnit" formats, but also "wasm/webaudiomodule" (or something like it). However, given how easy the various Linux options already are with JUCE, and how few plugin developers choose to use them, I have to wonder if the massively larger size of a "browser platform market" would be enough to get them to add another platform.