[kakacik]

Don't over-estimate that neither.

Things can be done in such ways that there is nothing visibly incompatible (ie scripting behind some forms), you can always just print and fill the document if needed, and anyway most documents are static pdfs with optional plus for filling some fields in computer.

[6510]

For us it isn't a very big deal. We will dig out the data points with our bare hands if we have to. (in ways that would make a data analyst scream) For normal users the experience is more like ransomware.