The source from where you cites this is very likely not the Swedish Transport Authority... guess it's from some other 3:rd party site that claims that the source is Swedish Transport Authority. Can you provide a link to a official authority site covering this..?
I'm very well informed about my own countries drone regulations, been flying since 2018 & know all about the past, present EASA & the transitional regulations in Sweden.
All below red marked claimed regulations in Sweden is totally or partly wrong...
No... you must register as a drone operator if you are the one responsible for the flight, but the drone doesn't need to be registered.
The max height AGL in the open category in unregulated airspace is 120m... nothing else. You have height limits on 50m withing the control zones of an civil airport & 10m of an military airport... but now it's not unregulated airspace anymore
Recommend all to use the official drone map over Sweden to get correct info regarding different zones & allowed max heights -->
LFV Drönarkartan (RPAS, UAS, UAV) (English translation available there).
It's correct that VLOS is required... but no precise max fixed distance like 500m exists.
This one is wrong... in Sweden we have the same rules as in all other EASA countries... max 50m out in "Follow me mode", not directly over crowds, not closer than 150m from residential areas, business & industrial areas & certain recreational areas (specified as National parks, Nature reservations & Muncipal nature reservations.
Map here, but only in Swedish unfortunately-->
Skyddad natur )
This rule doesn't exist at all... only the official authorities decides about the airspace.
The distances here is wrong...
A distance of 5km out from an airport is a No Fly Zone & is usually followed by a Control zone which have a max height AGL of 50m.
A distance of 1km out from a Helipad is a No Fly Zone & isn't normally followed by a Control zone as for Airports.
No such rule exists... the same rules as in daylight applies even during nights.