I usually always have between 20 and 40 tabs open, but I’ve seen a few people in forums complaining that some add-ons would crash because those individuals had hundreds or even over a thousand tabs open simultaneously.

Multi-account containers are almost indispensable for developers. As for tab groups, I am currently using an add-on to manage them, but having a native feature would be very cool.

Interesting. They are using AI to identify problems before they happen.