I have not published any GPTs, nor do I plan to at this time, so this morning, when browsing through settings, I switched off the “Name” under the “Builder Profile.” Then I spent 30 minutes trying to find the “Explore GPTs” so I could use my GPTs.
At least for me, I thought this setting would only change the behavior of ChatGPT if I planned to publish any GPTs. I did not understand that the setting also controls access to GPTs and the GPT store.
So, if you, like me, are a Plus user and do not see the “Explore GPTs” entry at the top of the sidebar, and you remember having fiddled with settings recently, double check that Settings > Builder Profile > Name is marked as on.