There appear to have been a small but important change in v5.4.x compared to v5.3.x around this prompt. In the older version, this only appeared when you connected to the screen. If you connected to the terminal or diagnostics, it wasn’t displayed. This meant you could furtle around the backend (e.g., grab some logs, update some files) without the user’s knowledge.
In v5.4.x the pop-up appears no matter how you’ve connected. I know this feature can be turned off but it’s a global setting.
It’s a bit swings and roundabouts whether you want to know you’re just diagnosing some fault. I guess we’ll just have to change our procedures to let them know via Teams and to just minimise the window.