Seems to have a clash between those rules in all config. Am I missing something to make this case pass?

Repro

{
  "extends": [
    "airbnb-base",
    "plugin:@typescript-eslint/all",
  ]
}

class HelloWorld {
  protected who?: string = 'world';
}

This will result in
error Type string trivially inferred from a string literal, remove type annotation @typescript-eslint/no-inferrable-types

class HelloWorld {
  protected who = 'world';
}

This will result in
error expected who to have a type annotation @typescript-eslint/typedef

Versions