Even if you are in the EU, 1-2 weeks notice for something like that is bonkers. And as soon as company has more than a handful of employees, this is something you want to have booked with hotel and such earlier anyways. From what I've seen in other companies, time and location of such things gets announced months in advance.
Apologies if I am remembering the anecdote incorrectly, it might have been more than two weeks. (We were in a chat group and he was bemoaning his visa headaches, I forget the exact mechanics of his company policy, since that wasn't the crux of the issue)
The point was, however earlier they had given their employees the notice, his visa was going to arrive much later than that.
Visa for us is extremely difficult, someone on twitter shared a screenshot, the Canadian website told to expect a wait of "580 days" or something absurd like that.
So you can hire remote workers cheaply from other countries (and no employment visa headaches), but if you expect to call them for a quick visit, plan absurdly early.
