This is the colony ship Mayflower, This spaceframe is a multi purpose design, Starfleet also uses a modified version od this space frame for Tug Boats and mobile repair bases
Wow that's a lot of renders! Lovely design, I think it sits nicely into a post-Disco timeframe. There needs to be more 1 nacelled ships in Trek. I'd love to see a little more hull plating textures to add a little more detail. I think that would an extra level of realism. Is that in your plan going forward? I like that you have hints if the nx class in the front of the saucer, I think it's a nice touch.
Looks like it would be pretty well suited to just haul stuff around inside and outside solarsystems, think it would be a good not too large all purpose freighter.
@Santaman Yes, working on a starfleet variant, the OP states that it's a commonly used space frame by civilians, Starfleet, and other specialized groups, such as the corps of engineers, and archeology, missions as it is very practical!
@Santaman Honestly no, but it carries enough support craft to ferry personnel and equipment to the surface