Their immigration and SAAQ sites are what I've interacted with most recently. Both "just worked" and had reasonable UI and UX without having to disable adblockers or use IE or any nonsense like that. There are small nits occasionally, but by and large they work for their intended purposes I've found.

I believe it's more prevalent in Europe, but if your bus or train departs at 23:30, it will arrive at 24:15, not 0:15. That's deliberate.

No idea if they still do it since I haven't looked at a paper schedule in years.

Not anymore. The busses only come every 5m90s on that route.