Laravel Session cookie cannot be set to 'None' for SameSite

I need to have my website in an iframe in another website. I test it in an iframe when trying to register and I get an Error 419. This is basically the same as: https://laracasts.com/discuss/channels/laravel/setting-same-site-in-seassonphp-doesnt-do-anything and the solution there was: Just convert and transform your whole app, which is something I unfortunately cannot afford right now, time is running low. I changed the 'same_site' => 'none', in session.php and that actually changed the type for the XSRF-TOKEN cookie only, however the _session cookie stayed the same. I also changed the 'partitioned' => true,, it was false, but that didnt do anything. I have Laravel, Livewire and Jetstream installed on a custom domain, on a custom server. Its a fresh installation, I have only transferred the resource views and the controllers code. The rest of the config is as:

'driver' => env('SESSION_DRIVER', 'database'), /*Defaults to database*/
'lifetime' => env('SESSION_LIFETIME', 120),
'expire_on_close' => false,
'encrypt' => false,
'connection' => env('SESSION_CONNECTION'), /*Not specified in .env*/
'table' => 'sessions',
'store' => env('SESSION_STORE'), /* Also not specified in .env*/
'cookie' => env(
        'SESSION_COOKIE',
        Str::slug(env('APP_NAME', 'laravel'), '_').'_session'
    ), /* The cookie in question*/
'domain' => env('SESSION_DOMAIN'), /* Also not specified in .env*/
'secure' => env('SESSION_SECURE_COOKIE'),/* Also not specified in .env*/
'http_only' => true,
'same_site' => 'none',
'partitioned' => true,

The onl SESSION_... variables I have in my .env are:

SESSION_DRIVER=database
SESSION_LIFETIME=120