Thanks for reporting these.
Alchemy bench instead of a ordinary bench was a bug. Fixed it.
Basic rock bench allows you to make potato seeds, but nothing else. Once you upgrade it, you can't make any seeds on it. This is intentional, but not ideal. I wanted to add a way to switch between different workbench levels while crafting, but never got to it.
Friends ending requires you to get 2+ friends. The game doesn't make this clear, since the endings are placeholders right now. This will change in the future. Friends in construction menu will lower the time required for constructing something. The more friends you have, the faster will you finish building.
Having your own surname is relatively new feature and it is quite possible i forgot about some instance where the old surname is still used. If you could tell me more about it, like the NPC, location or cutscene, I would apreciate it.
Again, thanks for reporting these. I will probably release new version in a week.