My understanding was that in most elections around the world, one must vote in the constituency that one is resides in or is registered in. To vote somewhere else, one must do some paperwork and/or change one's residence (i.e. move).
But it seems that this is not the case in Poland (Financial Times, 2023-10-17):
Kasia Czarska drove 45 minutes on Sunday to vote in the town of Sulejówek on the eastern outskirts of Warsaw.
The 39-year-old public relations manager planned her trip three weeks in advance of the fiercely contested election, studying Poland’s electoral map to work out in which constituency her vote could be of most help in ousting the ruling Law and Justice (PiS) party.
It was voters like her, casting their ballot strategically and showing up in unprecedented numbers, who secured the stunning victory of opposition parties led by Donald Tusk.
Perhaps the Financial Times omits some details, but it seems that this particular voter did not have to do any paperwork or change her residence (i.e. move) beforehand. Instead, she could simply on the day of the election drive to some constituency of her choosing.
Is this correct? How does such voting work in Poland? (Perhaps there are simply no laws against voting anywhere one likes?)