Yep agreed. My last flight in F there were no mid flight options (steak santa / anything cooked). Then I asked for Champagne and they whipped out the random J class NV. I asked for Piper Rare instead. The CSM also told me off when I went upstairs to the self-serve bar for a kit kat.And my experience says it depends.
For example, one flight I wanted something, probably the steak sanga probably 3h out of wherever we were flying. LAX iirc. I asked amd tbh the FA was hesitant giving me a spoel that they were preparing for breakfast and tgey weren't sure about iven space. i think I did get it, but it felt like I was being a spanner on the works and an inconvenience for sure (not that you expect in First).
Now that may have just been one crew member (though have had a few others over the years make me feel like I was imposing). Vast majority are fantastic of course, and I usually go with the expected servuce flow, but have experienced some resistance to some requests tbh.
So.. YMMV
I still book QF F when I can and go in with my eyes wide open, but I pity the poor retiree who splurges on the trip of the lifetime for a $20k fare … they’re in for a rude shock.