Royal Match might have appeared on your phone without your knowledge for a few reasons. First, it could have been installed during a system update. Several users have reported finding the game after updating their phones.
Another possibility is that Royal Match came pre-installed on your device. This is common with some Samsung phones due to agreements between the game developers and phone manufacturers.
In some cases, the Mobile Services Manager on Samsung phones can install apps like Royal Match without user consent. This feature bypasses user permission, leading to unexpected installations.
Rest assured, Royal Match is a legitimate game and not harmful software. If you don’t want it on your phone, you can easily uninstall it without any issues.