Yeah yeah, virtue signaling, and most of EU online services are now gated by the use of one of the whatng cartel web engines (IRL, google blink), namely EU web sites are broken favoring web apps.

They have to restore interop with noscript/basic html web engines (past/present/and future).

Then, they have to be carefull with their file formats, for instance you never give "carte blanche" to such a disgusting format like PDF, you are very careful at defining a, as simple a possible, subset of it (with some internal software for validation).