Is it okay to use the groute in a tube caulk stuff to grout tile
instead of the poder groute you have to mix up? I grouted some tile
with the grout/caulk and it seems fine but I noticed all of the seams
are softer than normal grout but I have heard the tube grout/caulk is
made for total grout jobs.

The tile work I did was around a bath tub so it was not used for
flooring.