OP – you’re describing your feet as ‘foot shaped’ but then seem to be saying you have to buy the wrong size shoes or that mainstream manufacturers aren’t selling shoes in your size.
Everyone’s feet are ‘foot shaped’, just as everyone’s hands are hand shaped, but people’s feet have different proportions, width, volume, arch height or not, toe lengths etc. The thing when people somehow imagine that their particular feet are the ‘correct’ shape and bemoan the lack of footwear that fits them is a bit bonkers.
The reality is that most footwear brands produce shoes and boots that fit a medium sort of foot shape because that way they sell more product. If you don’t fit in those parameters, it doesn’t mean your feet are ‘foot shaped’, it means they’re wider, narrower, weirder or whatever than most feet and you’ll find it more difficult to source shoes that fit them.
None of which is rocket science.