no need for sorry, the forums are not easy to search.
the more the merrier, all viewpoints are relevant until we see the truth up close in person. till then guessing is everyone's game.
and some of us have been able to fly anacondas inside the (apparently)crashed ships due to very early graphic glitches.
this allowed us to make screenshots of things that most people do not get to see.
from those images my first guess was that they landed due to mycoid, but then screwed themselves deep into the ground in order to be a base of operations and a seed ship and to heal.
But even though any or all of that might be true, or none of it, I do think the starmaps are barnacle seeded locations and I knew from the first time I saw a barnacle the emblem on them was an imprint of the nebula that is their owners home which made it clear the barnacles belong to them and we(mostly feds) were harvesting them and creating a problem for all of us.
learning later that our own fsd was stolen tech from them just compounded the problem and has made us all guilty of stealing thargoid tech.
which all adds up to us being the invaders the thieves and the agressors to a race that is far older than ours and as far as we now know, they were in our space long before we even existed.
leading to another theory that we came from the ancients and were seeded here by them, probably as a final blow to the thargoids as they ran as fast as they could out of our area of the galaxy to get away from a superior race that's sees us as gnats in their garden eating the fruits of their labors.
No surprise that the feds would secretly know and embrace this theory as they are very aggressive, not to mention the feds probably have actual records indicating all this to be truths and is why they are so aggressive. Gnats in a garden or not, they do not want to die and/or be used as fertilizer by the bugs.