alt Hacker NewsImo, both. The more right wing people started to have aggressively anti-EU stance once Vance openly stood on the side of Orban and against EU and democracies in general.
And some people see tech companies as worship worthy and trying to restrict them is kind of a blasphemy.
The Vance thing is far too recent and inconsequential across europe?
The sentiment precedes all that and mostly stems from the EU being in some ways originally lib left dominated and still being seen as facilitating non-eu migration
Regular right wing people (aka not one of the many parties potentially receiving donations) don't tend to love giant webtech companies. Especially since they feel like they're often used as a tool against them and aren't a local thing that draws nationalists either.
A focus on privacy also isn't a very left-right defined thing tho i have noticed that the most far reaching expressions of it come a bit more from the further ends of that spectrum. (you'll see some very left leaning people at fosdems privacy focused/related stands for example)