abcd2:
The tefilloh of Lecha Dodi of R’ Shlomo Alkebetz is certainly one of the great inclusions into Kabolas Shabbos. However, it is notable that this beautiful song only references the subject of Shabbos in the first two stanzas. From there to the end, the focus turns to the golus, particularly the desolation of the makom hamikdosh. Only at the end of the final stanza is there casual mention of Shabbos, with Nusach Sfard actually saying the words “Shabbos Malkesoh” in Aramaic, and Nusach Ashkenaz referring to Shabbos only symbolically with “Bo’ey Chaloh”.
The sefer “Seder Hayom” contains a nusach for Lecho Dodi that substitutes completely different stanzas after the first two, and makes no reference to the churban or golus. There is only a song to Shabbos. I am not sure who composed that version of Lecha Dodi.