No, free software does not have any restriction in any granted right, it is a requirement if they (authors) want themselves attributed.
GNU put restriction on modification and redistribution. Then they are just “open source”, then they have do define the term “Free and Open source software” which use more words to describe the same thing (assume free software = foss, because GNU always claimed they are making free software).
With GPL, such maneuver is impossible.
Much innovations is impossible.
And such long word for a license, I don’t want it fill up my A4.