In Valorant's subreddit, a thread where users discussed if the community liked the newest Agent, KAY/O, users went on a tangent to discuss if Killjoy was underpowered due to the release of KAY/O. However, a Riot developer suggested that the "genius of Germany" is indeed still really strong despite nerfs to her abilities and the introduction of the new Agent.
In the Reddit thread, a user wrote that "nerfing Killjoy and introducing KAY/O at the same time was a bad call."
The nerfs in question refer to the Episode 3 patch that saw nearly all characters have their abilities nerfed by increasing the price. The only agent that didn't have their abilities see a mark up in price was Killjoy, who only received longer cooldowns to her abilities. Coupling the longer cooldowns with KAY/O's ZERO/POINT (E) ability that's able to shut down her turrets from afar, it would seem like Killjoy has fallen off a bit.
Riot Games' insights and product strategist for Valorant, Coleman "Altombre" Palm disagreed with that sentiment as he wrote in the comment thread that suggested that Killjoy is still very strong, if not, stronger than she has been before.
Altombre added in the thread that she is still strong in matchmaking and is very powerful in lower-ranked games as she holds the third-highest win rate "across the spectrum."
Since her introduction to the game, Killjoy's abilities have been nearly essential for teams to have one in lower ranks and even in professional play due to how strong her abilities can be if coordinated correctly when invading sites.
Whether or not this discussion may have some future nerfs planned for Killjoy is unknown, but Killjoy players can rest easy as she still remains as one of the best agents to play in the game.