My experience moving between startup/SME/corp:

Smaller teams have more agency to move and usually team members with broader responsibility and understanding of the systems. Also possibly closer to stakeholders, so are already involved in specification creation and know where automation can add value. Add an AI agent and they can pick and choose where they can be most effective at a system level.

Bigger teams have clear boundaries that stop agency - blockers due to cross team dependencies, potentially no idea what stakeholders want, just piecemeal incremental change of a bigger system specified by someone else. If all they can do is automate that limited scope it's really just like faster typing.

Small teams prioritize expertise and agency.

Large teams prioritize service resilience and depth of coverage.