The issue of footwear to wear on Camino or backpacking or whatever has one big caveat: One size does not fit all. In other words, ignore recommendations of specific brands, models, etc. One person using a specified shoe or boot will crow loudly to the heavens, "This shoe is the best and kept me blister free, made me feel like I was walking on clouds, made birds to sing, children laugh, and rain turn to sunshine". Yet another person, wearing the identical footwear will scream, "Dear God, what new level of Hell am I in?"
Recommendations should be treated as an item on checklist of shoes to consider; a place to start. The other issue is the fact that if a shoe feels good when walking 5 miles, in 10 miles they can produce pressure points and begin showing inadequacies of support --- or too much support, which can be as bad as too little support. The less experience in walking longer distances, the more time you need to take in sorting out whether or not your chosen footwear will work for you and your feet.
Running shoes. These are generally the lightest of the basic category of shoes. There are two distinct categories: Road shoes and Trail shoes. The differences between the two types are: traction and tread, materials used and durability, levels of cushioning, motion control and support, protection from getting poked in the sole by rocks and sharp trail debris -- which can make the bottoms of your feet sore or injured. A properly fitted shoe in this category should require no break in. In fact, if there are suspicious pressure points, or they feel a bit tight, they will typically not get significantly better until the materials start to break down.
Trail shoes. These are the beefy cousins to road and trail runners. They have a heavier design structure, sometimes more cushioning, sometimes better and more aggressive tread and traction, are stiffer in the forefoot. Generally, their usable life is somewhat better than either a road or trail runner, but it isn't a given. Again, a proper fitting trail shoe does not generally require much, if any, 'breaking in' to feel good on the foot.
Trail/hiking boots. Since I am not going to talk about mountaineering boots, trail/hiking boots (either name works) are the heaviest category of foot wear. They are stiffer than the others and they can generally be resoled. They can come insulated for cold weather walking, like my Lowa Camino that I use in the winter, or not insulated. This footwear will outlast the other two categories by wide margins. Depending on the boots manufacturer and materials (fabric vs leather vs hybrid) it can take a considerable time to break a pair in so that they feel better on the feet.
There are factors and characteristics for each category of footwear to consider, as well as when during the year and what type of walking you would be using the footwear for. There are folks who prefer only going barefoot on one end of the spectrum, to those who wear the heaviest backpacking boot on the other end. Preferences in types and styles of footwear are subjective and personal. The reasons given to support that choice may or may not be valid for anyone else.
I have tested a lot of footwear over the years for manufacturers targeting backpacking and hiking activities. I have found great shoes and boots which are great shoes, but ones that were not good for my feet and would feel good to others. For example, the Solomon Pro 3d series of shoes are great shoes, albeit a bit heavier than some other great shoes. A lot of people love them. When I tested them they performed extremely well ---- but I hated wearing them over the long run. That does not discount the fact that large numbers of users find them very comfortable to wear.
This just demonstrates why you cannot blindly rely on anyone's recommendations for a specific shoe. Note those shoes which receive a lot of good reviews for fit, performance, and longevity both here and when Googling for recommendations. Then start the process of finding the one which YOU like best.
