semver package question

I have been trying to understand how works npm i, how works caret and tilde but I don't know why I can not save with the command npm i a tilde or other any expression of semver.

The semver prefix is defined by the save-prefix config. The default value is a caret (^) which you can check by running the following npm config command:

npm config get save-prefix

npm i pino@6.x.x save in package.json ^6.13.3
npm i pino@"~6.11" save in package.json ^6.11.3
npm i pino@"6.11.x" save in package.json ^6.11.3

the only way to see what i want is update manually my package.json

 "dependencies": {
    "pino1": "^6.11.1"
    "pino2": "~6.11"
    "pino3": "6.x.x"
    "pino3": "6.11.x"
  }