It all depends how much wet OP is going to encounter. Last year I hiked the 250 mile Kungsleden into arctic Sweden. Temperatures ranged from 37F / 3C to 60F / 15C. It rained every day, but not all of every day. The ground was sometimes flooded, but never above shoe level, and there was soaking high vegetation in places. There were many rivers and fjords, but with bridges or boats.
I wore Brooks Cascadia GTX shoes. The shoes were almost constantly wet on the outside, but my feet were never more than slightly damp inside. I also wore lightweight long gaiters under waterproof pants so the rain could not drain into the top of the shoes.
I camped every night, and when I stopped I just wiped my feet with my slightly damp socks – no dirt, no wrinkles, no hot spots or blisters the whole trip, just warm dry feet, and socks, and no other care required. I carried some Trail Toes with silicone mixed in, but never needed to use it.
I’ve done long walks in similar conditions in the 30s and 40s in the U.K. sometimes in snowmelt too, with plain mesh shoes, and having wet, cold dirty pruned feet a lot of the time was simply miserable. Your shoes will never get a chance to dry out. Warmer conditions are a different case altogether. Pick your gear to suit the trip, and for these wet cold trips on good tracks GTX was without any doubt the way to go for me. I think conditions in Spain in the winter might be similar.
The wpb membrane doesn’t last forever. I find after about 250 miles some water will get in, but obviously nothing like the constant flow of muddy and maybe slushy water through normal plain mesh. Another alternative to maintain dry feet might be wpb socks. I suggest OP experiments with all these alternatives, including the soaked feet one, to find what he is most comfortable with.