Suggestions are the main way this grows, so yes — keep them coming.
Fjällräven is a good example of the hard case: strong Swedish identity, production largely elsewhere, and no per-line statement from them that I can point at. Without that there's nothing to verify in either direction, which makes it a not-listed candidate rather than a listing. That page exists precisely so brands like this don't just quietly go missing.
Both are in there — 11 Portuguese and 11 Spanish entries at the moment, and footwear is where they're strongest, which matches what you'd expect. Portugal in particular is where a lot of the shoes sold under other countries' brands actually get made.
https://browle.com/en/made-in/portugal · https://browle.com/en/made-in/spain
p.s.: glad to make you even more happy wearing Birkenstock sandals 😀