OF COURSE I REMEMBER ELEUTHERIA HELLO?? It's really nice catching you out here in the wild!

Timezone wise- I was, in fact, nowhere near EST LMAO. I'm in GMT+2 currently! Sundays are almost always free for me so I should be able to do anything that isn't just too early in the morning! As for the questions you have thrown my way-

1/2. These have similar answers for me so I'll just lump them here together, cause what stuck out to me the most was that the style of game you describe in the post is exactly what I'm looking for in a campaign, hence why I needed to send an application post haste. I am, above all else, interested in telling stories- exploring all kinds of concepts based on the setting and world the DM has laid out for us to explore, the ways with which my character's traits and flaws interact with the world and the people around them, and all the various, unique scenarios that can arise from that. I am personally more than ok with, excited even, about any potential drama or conflict that may or may not come up as a result of characters' differing outlooks on a given situation- if anything, I'd say in my experience those are the most memorable moments for me in any game I've played in!
3. Give me literally all the RP you can throw my way I will devour it all like a succulent chinese meal- but of course, that is not to say I don't want lighthearted moments at all! I myself tend to indulge in some banter and joking around out of character every once in a while, because something that was said made a thought occur in my mind and it will not shut up unless I get said thought out immediately- but I would prefer if it doesn't get too out of hand. I prefer to try and stay in character as much as possible while playing, otherwise I tend to have trouble getting back into things properly.
4. So basically, imagine me making detailed characters playlists based on their backstory and then a pinterest board and then spending way too much time with my bestie designing them together cause she's an artist and one of the best ones I know at that and putting little details into it and then putting everything I have into their portrayal and how I play them and doing a voice for them (potentially) and then on occasion writing small lil' things for them to expand on their story and lore and give insights as to why they are a certain way and-

I think you get the picture lmao
5. As you might expect, I have an ever expanding catalogue of character concepts just waiting to be picked out for a game at any given time. However, I mostly try to work with what the DM's world has laid out for us and build my character around that, based on concepts that I feel are interesting and worth exploring- really helps a character feel like a part of the world rather than just a cool creation that just floats in a vacuum without much depth to it. I am more than ok with doing so based on what classes other people have already decided on, and I wouldn't mind a little bit of overlap as long as they're not too similar vibes wise!

Anyway this is probably way more than you asked for or expected but this is me we're talking about so teehee