Magento still logs my customers out after 15 minutes.
I tried changing session.gc_maxlifetime from it's default 1440 to 525600 and it didn't do anything.
I then tried changing session.cookie_lifetime to 525600, and that throws up errors, and breaks the application.
I tried changing my app/etc/env.php "session" to
'session' => [ 'save' => 'files' 'save_path' => '/var/session' ],
I use /pub as doc root, so I created a var/session directory in /pub, but that didn't change anything.
How can I keep my customers logged in for a long time without breaking my site?