BDO : You kill bosses for gear, you grind world for mats.
BNS : You kill bosses for gear, you grind solo (CB, 20f, TA, etc for mats).
With the current amount of players, group play will be a problematic thing. Making a raid static is harder now, that beating a raid. Dungeons are interesting in the first 10 runs, after that ppl ask for stupid gear just to speedrun it. Imho the solo grind would be a better option.
For a veteran yes. For others, not really. Make a new char, apply into 6v6. You will be a mouseclick.
Both games are boring. But again, PVE is solved better in in BDO. Catching up is easier and jump in bar is lower for endgame content.