The UKMO produces the F214 and F414.
All other wind data anybody is likely to see is almost certainly from the US-run GFS weather model, which is freely available via countless websites, like the one I posted.
But yes, the extent to which one uses this stuff for actual flying depends on the kind of flying one does. In modern times, you use a GPS so the wind is no longer relevant to navigation because you are getting a continuous lateral guidance along the programmed track. The wind remains relevant to fuel planning, and there are various rules people might make use of (e.g. ignore any forecast tailwind, plan with the full value of any forecast headwind, or whatever).