While updates are primarily useful and recommended for better security, access to the latest features, and improved performance, there’s a reason why you might want to delay them. After an OS update, the device often gets introduced to the latest software bugs and performance issues. This usually happens during the first few days after release. Users who install updates very early report such bugs, which are addressed in subsequent minor updates. That’s why you usually get updates in the form of iOS 17.1.1, iOS 17.2.1 or similar.
So, if you depend heavily on your iPhone for work and play, you may want to wait a while before updating to the latest version of iOS. This is especially applicable if you intend to install a beta update. Beta updates are unstable and can ruin your experience. Wait a few weeks, let Apple fix the significant issues with the update, then go ahead with it.