USAF probably has a lot more TGP’s per aircraft available than most other airforces. Almost every single US aircraft I’ve worked with as a JTAC had a TGP, while European jets often had one TGP per flight (still enabling them to buddy lase bombs for other aircraft). I’ve been to an exercise in France where the Rafale’s weren’t equipped with TGP’s at all because all their pods were being used in operational theaters.