I moved from the UK to Finland, and while the overall process is similar there are some niggles.
Generally you'd have a similar amount of time off here, 4-5 weeks, and it would run April-April as you said for your own.
The biggest difference is that you must take two consecutive weeks at least once a year.
That said there are pluses I think I'm allowed to stay home to care for a sick child 11 days a year, paid. That's a nice bonus, and it has been useful as a parent. When our child was a baby, or toddler, sickness mostly meant that he stayed asleep all day and was lethargic and quiet. Now he's older there's no chance that I'd be able to work from home and take care of him, so those days come in useful. (Helps that I get my 11 days, and my wife gets a similar amount too.)
Otherwise it feels like most Finnish people take a month off in the summer, to the extent that a lot of shops/places in the city close down due to no staff, so there's often a bit of negotiation within teams about who can be away, to make sure there is cover. But it feels pretty relaxed and friendly.