You're probably right @storiesoferne, the bride and groom seem to be introverts 😉 and such an environment was comfortable for them (and for some introverted guests also 😊). A cool and touching moment during the wedding was a slide show and a story about how the newlyweds met and how their love matured, pictures from common trips and everyday life.
In my country, outdoor weddings aren't usually held, because it is cold for many months of the year, the weather is uncertain (it can suddenly start raining) and it is definitely better to organize a wedding in a wedding hall (indoor, not open-air). Weddings usually take place in very elegant wedding halls, but this place positively stood out. I've never seen such a room with a fireplace in a place where a wedding was held. The interior design was very sophisticated.
RE: Manor house on Wodokty. An elegant, charming place with elements of boho style / Dworek na Wodoktach.