Missing flows after Microsoft changed UI and created a Default Environment in my account
I've some flows created and working for several years now. Today, after logging in, I've found my flows disappeared. I'm a Brazilian user, and I've noticed that UI changed -- last time there was no environments. My flows are still running normally, but I would like to manage and check them, which I'm currently unable to do. After logging in, Flows page states that I need to create my first flow. I checked Connections, my existing connections are not there. I'm checking the correct account/username, the one where I get my notifications from Flow.
I read a lot of previous users with similar problems, but could not find a solution that matched my situation. I do believe the issue is due to the new environment created in my account (only one, named "Default Environment"). Could a Microsoft staff person take a look at this issue and point me to the proper solution?