Counter Spying should be across your whole civ, rather than against one specific one.

[orchid stirrup]

There should be no limit for counter spying against other civs.

I'm in a game where all the other civs are simply stealing all my techs because I can only counter spy a single other civ at one time.

There doesn't seem to be a way to counter this and it would be great if there was maybe some generic counter espionage action against all other civs like how you could protect your specific cities/districts in Civ VI by stationing your spies.

even the "friendly" civs are stealing my techs smh.

[safe viper]

I agree. In my game, other civs were constantly spying on me and it felt like I couldn't really do anything about it to stop them.