Confessionals in Zielonki of wavy lines belong to quite interesting church furnishings of that type in Lesser Poland. They were probably created by Antoni Frączkiewicz - a carpenter and wood carver. He made similar works for the Wawel Cathedral and St. Mary's Basilica in Cracow (currently transferred to other churches in Cracow and around Cracow).
Józef Skrabski, "Confessionals", [in:] "The Sacred Lesser Poland Heritage", 2025, source: https://sdm.upjp2.edu.pl/en/works/confessionals