Spawners are still dropping even with disable_silk_touch set to 1 in the config. Disabling this mod makes them stop dropping, so it's definitely something with this mod.

For reference, I'm running the latest Minecraft v1.18 version of the mod, downloaded from Modrinth.

Scratch that, it seems like it might be an incompatibility with another mod. Will close this issue but might reopen it after doing some more testing and eliminate doubts.