There are still gaps and problems in the OS, as they always are in any operating system. But these updates are ones worth doing.
Apple has released iOS 13.5.1, iPadOS 13.5.1, and watchOS 6.2.6.
All three provide, per Apple, important security updates. iOS 13.5.1 and iPadOS 13.5.1 by going to Settings > General > Software Update on your iPhone or iPad.
watchOS 6.2.6 can be downloaded for free through the dedicated Apple Watch app on the iPhone by going to General > Software Update and following the instructions. To install the update, the Apple Watch needs to have at least 50% battery charge, must be placed on a charger, and in range of the iPhone to which it’s paired.