For example when I place a bamboo block and try to break it, it doesn't drop anything. I only have this problem on servers, not the singleplayer. Everything works fine in singleplayer worlds. I tested this on several worlds and servers and I had this problem in each of them.
While testing this, I didn't make any changes in gamerules or didn't add third-party data packs. The worlds use vanilla, bundles and 1.20 experimental data packs.
The feature flags only get set on initial world creation. Did you enable the packs after the fact?