Issue: Cannot Share Agent to New Editor in Copilot Studio New Experience

I dont know if this is still relevant, but there is a workaround. I tested it and it works in my tenant:
Original Author: https://www.powertricks.io/sharing-and-deploying-copilot-studio-agents/

In Short:

• Every Agents that gets created in the Env has a Team automatically created with it (Team name = agentId_1)
• Adding a User with ENV-Maker role to that Team grants them Edit access to the Agent
• Removing the ENV-Maker Role broke the access to that agent in my tenant
• There might be a lesser privileged role that might still work. 
• The important DV Tables seem to be bot and botcomponents where orga CRUD access is required

Hope this helps!