Multiple administrator connecting to a router - who has precedence? Can they monitor each other's logs?

Just getting started in Networking. Came across multiple administrators connecting over Telnet.

Does someone who connected first have precedence over everyone else?
Does a admin connected to VTY line 1 see the logs of VTY 5 if V5 change something V1 configured?

If someone could point to a resource video/article that goes over this topic I’d appreciate. I couldn’t find anything useful when googling "multiple administrator connecting to a cisco router" – also I was quickly overwhelmed.

Thanks.