Not surprisingly for DNS4EU as that behavior was exactly what everyone was expecting when that service was announced...
Fortunately there are several free and uncensored alternatives available in Europe. Bonus point: Take the 3 extra minutes and finally set up properly encrypted DoT or DoH (DNS over TLS/HTTPS)...
PS/Edit - As a starting point: digitale-gesellschaft.ch (Switzerland), digitalcourage.de (Germany), uncensoreddns.org (Denmark) are the ones my home network queries at the moment...
PPS: DNS4EU has an explicitly unfiltered one, also DoT-compatible: unfiltered.joindns4.eu (86.54.11.100) that resolves those archive links for me
The new law got introduced in August 2021 and offers a ten-year period to provide your documentation.