saying your thousands of servers wont have ssh keys installed when they have arbitrary software installed is disingenuous at best. thousands of servers are man

saying your thousands of servers wont have ssh keys installed when they have arbitrary software installed is disingenuous at best. thousands of servers are managable only with orchestration solutions, this is a solved problem. the unix world also has evolved from a bash for loop to ssh into servers and read outputs. i can solve your task in comparable time with pyinfra or ansible executing arbitrary python code on every node with not just csv output but whatever you dream up.