Was it just Daniel who prayed toward Jerusalem or did all exiles do so?

While studying the book of Daniel I came across: >Daniel 6:10 Now when Daniel knew that the writing was signed, he went home. And in his upper room, with his windows open toward Jerusalem, he knelt down on his knees three times that day, and prayed and gave thanks before his God, as was his custom since early days. and since it is necessary that Muslims face mecca when praying I wondered if that was some ritual that all exiles followed or if it was only a custom of Daniel. I checked this question but it does not address my point, https://christianity.stackexchange.com/questions/35444/why-did-daniel-feel-the-need-to-pray-towards-jerusalem-even-at-the-cost-of-his Does anyone know the answer to my question or where I might find some guidance on this?