How to get back my safari browser?

1. Search and find

    Search all Home screen pages.

    Do a one finger swipe from the middle of the Lock Screen.

    Enter Safari in search box to show Safari.  

    https://support.apple.com/en-us/HT201285

2. Make sure that Safari is not restricted.

    Settings > Screen Time > Content and Privacy Restrictions

    Enter Passcode if you have set it up.

    Allowed apps > Safari

    Turn it on.

    https://support.apple.com/en-us/HT208982

3. Reset Home Screen

    Settings > General > Reset > Reset Home Screen Layout

    https://support.apple.com/guide/iphone/return-iphone-settings-to-their-defaults-iphea1c2fe48/ios

    https://support.apple.com/guide/ipad/return-ipad-settings-to-their-defaults-ipad9a74dc01/ipados