Sumatra PDF generates clickable references with errors. Example this entry  https://www.bitkom.org/sites/default/files/202007/200703_lf_selfsovereignidentityusecases.pdf on page two in the column “Quellenverzeichnis” in this file LeSSI-Flyer-Endbenutzer (realtime.fyi) . To me it looks like Sumatra-PDF is misinterpreting the special characters in the URL when parsing. As you can see here in the text of the post, the slashes in the URL  are displayed correctly, but the generated URL is incorrect.
What can I do so that either no links are generated by Sumatra PDF or working links are created? This sample PDF is created with Scribus version 184.108.40.206.
In Acrobar Reader on Windows 10 Home 20H2 64-bit and with Reader qpdfview version 0.4.17.99 for Raspbian the described error does not occur.