Ok, that indeed looks like its the webkit2gtk bug. So you only need to wait for your distro to provide the fixed version.
Debian-based distros may not be so lucky until this RC bug is resolved: https://bugs.debian.org/1061406
Basically what @jbicha [said already](https://github.com/geany/geany-plugins/pull/1295#issuecomment-1906999722), but now the autoremoval clock [is ticking](https://tracker.debian.org/pkg/geany-plugins) for geany-plugins.