It does, but slowly enough that just sitting in one place isn’t very effective and could get boring quite quickly.
Perhaps the intention is to go around picking up some of the other salvage items/materials as you look around. It’s what I did while specifically looking for drive components until I had 3(plus a mixture of the other Titan-specific items).
As you routinely get corrosive mechanisms and caustic shards as part of the spawns, it is also technically possible to remain in the cloud indefinitely. And surprisingly easy to without attracting Thargoid aggro(unless it’s a Scythe and you hold pods, due to their scanner pulse - given the opportunity, they will also chase you all the way out of the cloud).
Also - yes, you want a corrosion resistant rack for the unique Titan salvage. It showed up using ‘Damaging’ cargo filter. The pods with people in them, however, those don’t require anything other than a normal rack(and a collector limpet if you don’t want to deal with the idiotic hitbox nonsense that sometimes occurs around cargo hatches).