In Spain it takes about 3 weeks, or at least that was my case. But they will ask you proof that you are legally living and working in Spain (even if for an UK company), such as (visa, work contract, etc.), and not only as a tourist being a digital nomad, if you know what I mean. If you want to do it from there, and you have all the required paperwork stating you do live in Spain, there should not be a problem applying from there I believe. Or to make sure, maybe ask them via email. They don't ever take the phone, but via email they may respond. No interview in my case, if that helps too.
Sometimes they do repeat asking for the same information you already submitted, along with new documentation. Best approach I find is to send again regardless, so it does not confuse them that you are not sending something they are asking you to. Maybe add a Word document as a cover page and attach it as a whole PDF explaining nicely that you are resubmitting XYZ as requested, and whatever else they ask you to. I did it that way every time, and when they stopped requesting any supporting information -I believe- it is when they started processing all documentation for the application as a whole, since I did not hear from them again for another 2 weeks after two consecutive rounds of asking supporting information, and then I got my approval. Just be nice in any piece of writing you do as well, and describe things as they are requested.
I did have the same issue towards end of 2024. I had only entries in the rom January, with two extensions (second one did not even used all the 30 days), and was out by June. I stayed away back in my country for pretty much 5 months, and when I tried to get in again for a legit only 2 months expecting the exempt free stamp for 60 days (so did not apply for any visa), I was pulled outside the line, got very very close to get deported and finally only allowed in with a warning saying I must leave by the date of my fly out of country or I'd get in big trouble. When I asked at immigration office about that warning later, they told it did exist in my history and I should leave by that date. That never happened before, but it does seem to be a more recurrent practice these days, even if they are not back to back entries. I got lucky because the officer was nice enough in the end, and I kept saying I genuinely only needed those 60 days, which is why I got the note and warning not to stay longer than that. They were pushing for me to get DTV visa by the way, which at the time did not even know that it existed...
It doesn't make it any less weird that another country also asks the same. They make you organise and pay in advance for a trip and accommodation that may not even happen if you get rejected. How is anyways relevant or valuable for the visa-purposes at all for them to know an address where you're going to stay? You may end up staying somewhere else after! Basically, what's the point really for them to have all that information. By all means, you'll need to stay somewhere, but why would they need to know in advance before you even set food in the country and haven't even had a chance to find a place you may like... 🙄🥴
Then I do not have an answer for you. You need to get some sort of visa if you want to be as long for a year. DTV seems not to be your match if you're not a remote worker. Try back to back for a couple times on single tourist visas plus extensions, which gives you 6 months, until probably one day they'll deny you reentering the country on a third attempt. But you can always try, I mean every officer or port of entry is different. Or get retirement visa for a year and then move to non-B.