You can upload as many as you want, but you are limited to submitting to the moderation queue. And no, per se, submitting to the moderation queue is not considered as spam, but if the assets are too similar, that will be spam. And spam assets start with the fourth similar image but to have consequences for account blocking, you need to submit more similar images. There is no published threshold, but I suppose it is nearer to 50 assets than 5,000 assets.
As for spam, you will need to study this carefully, as it describes very well, what spam is: https://helpx.adobe.com/stock/contributor/help/similar-vs-spamming.html
So now to your 80k assets.
You say that you worked for months, so let's assume that's 6 months. 6 months is 183 days, that's 4,392 hours, but you have to sleep, eat, do other things, let's deduct 8 hours per day for that. That leaves you around 2,928 hours of work, or 175,680 minutes. That leaves exactly 2 minutes 12 seconds to check each asset for errors and similarity. I doubt that that is possible. So, what lets you think that your assets are high quality?
(As a side note: I know of a contributor with only 60,000 assets who got blocked, because of some violation of the terms. Walking through all those assets again, to see what assets were in violation, is an impossible task.)
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