Things haven't been going great for Warzone 2 players since it's November launch. From claims of cheating to crashing to other bugs, players don't appear to be happy, and it's caused a significant amount to simply stop playing.
Simply Restart the Game and Your System. Some users from the Reddit forum reported that the Warzone taking forever to find match issue can be solved by performing several simple restarts. Here you can try closing the game and relaunching it, or restarting your system to clear the temporary glitch.