For The Time Being (2020, Salka Tiziana)

[Mothravka]

Larissa and her nine-year-old twins arrive from Germany at their father’s paternal home in the Spanish Sierra Morena mountains. Father’s flight was delayed, but the guests are welcomed by his mother and sister. As the scorching hot days go by, everyone tries to relate to each other.

For the Time Being – Trailer | IFFR 2020 - YouTube

[Mothravka]

I watched it as a part of MUBI's "Film of the day", but it seems it's still available through their library, at least in Sweden. Uncertain about other countries.