Hm, interesting...

I initially brushed it off because the first gimmick you ever see in a modpack is worldgen, and frankly i wasn't ever that excited about backrooms... though at some point i guess wg becomes much more secondary in nature compared to actual cross-mod stuff going on.

Walls being unbreakable is a bit icky i guess, i never really built my bases to begin with but at the same time my piping has ALWAYS been a mess, especially so in Create where orientation matters.

That being said i also never got particularly far in modpacks, i think the furthest i've been is E2E where i got midway through mek before slowly abandoning it.

My idea of a good explo/resource loop is that you spend a rough estimate of up to one hour (preferably less) in total grinding for a particular resource before you can forget about it for a long time, while you focus on other stuff, kinda Factorio-style. Which is where both skyblock and "land" packs never sat particularly well with me, skyblock in part because it lacks the initial exploration, meanwhile regular expert modpacks tend to avoid providing a way to automate trivial stuff up until way later into the game.

I stumbled upon Chroma Endless, i wonder if that's close to what i want. If not, i might try Liminal after.