The home visits are regular and scheduled, breatfeeding advice was offered in hospital, a breastfeeding support clinic is run for free in our local hospital once a week and on other days in local community centres. Two of our children have been identifed as tongue-tied by midwives in hospital. The midwives in hospital provided formula for the most recent baby when my wife was having trouble feeding.
Overall, we've felt very supported by the NHS. I suspect the difference is partly timing, every team contains good staff and bad staff. It probably differs region to region as well, I'm in Buckinghamshire.
Finally, sorry to hear about your experience of tongue tie. This is also mentioned in link [1], so it's definitely not something that the 'NHS doesn't believe in'.
[1] https://www.nice.org.uk/guidance/cg37/chapter/1-Recommendati...
I do agree that the health visitors probably end up being more hassle and causing more stress than they're worth. By the time of our third kid we just smiled, nodded and lied our way through every interaction until they went away.
Different trusts in the NHS have wildly differing support, policies, physio, mobile apps, leaflets and documentation, etc etc. It makes the "N" in NHS a bit odd, and surely is tremendously inefficient!
(Having said that, and having recently had a baby the NHS and their staff have all been amazing!)
Fortunately for us, when having our first, we knew about it and in Southampton UK they are one of the better hospitals who check for it and can get it sorted at one of their breast feeding clinics.