Is modifying Laravel base config files a bad idea?

Question

Laravel comes with some basic config files available in config directory.
which each file is basically an associated array.
now, I want to change the structure of config/mail.php from

'from' => [
        'address' => env('MAIL_FROM_ADDRESS', '[email protected]'),
        'name' => env('MAIL_FROM_NAME', 'Example'),
],

to

'from' => [
    'noreply' => [
        'address' => env('MAIL_FROM_ADDRESS', '[email protected]'),
        'name' => env('MAIL_FROM_NAME', 'Example'),
    ]
],

so I can have several emails with differnt name.

My question is generic here.
What are(if any) disadvantages of modifying structure of the config files?
Is it possible to be troublesome between LTS upgrades?

Answer 1

You shouldn't modify email.form data because Laravel uses the data:

You may specify a global from address in your config/mail.php configuration file. This address will be used if no other from address is specified within the mailable class