Is it really though? I ve been going around european companies and its all work till you drop 80h culture and no holiday, cause we need a guy on standbye. That stuff only ever exists on paper.
Which companies in which countries? I'm in Germany and I have never ever seen or (from friends and acquaintances) heard of vacations not taken due to pressure from the employer. It's about as common as an employer arbitrarily deciding to transfer less than the agreed amount of salary at the end of the month - maybe some very dubious employers have done it at some point, but it's not something to worry about.
What is fairly common is employers reminding employees to take their vacation days before they expire. Vacation days from year n expire in April or so of year n+1. That is intended to prevent postponing vacations to never (maybe until switching jobs).
Im in germany, and the pressure is there. Old employer at least gave vacations, but shifted them as needed. New employer basically denies vacations categorically, cause nobody else can take care of the system.
All this talk about labour laws etc. its like people hallucinating, cause in my world this just aint real.