I keep getting upgrade pop-ups in my account and I'm already on a paid plan

Three things here: the upper blue banner in the background, the bright [Upgrade] button by the User menu in the upper right, and the obvious popup in the fore.

THREE calls to action on ONE screen, one of which NEVER goes away, and two of which pester the user CONSTANTLY.

"Dropbox will always have marketing."

Do you mean literally every second that I use your product? In three different ways at once? How bad is business? Should people sell or short your stock? Your response here is nearly as tone-deaf as the UX is infuriating. Dropbox should remember that it is cheaper to keep existing customers than to acquire new ones. 

I already pay for your product! I only use 3% of what I am paying for! Don't ask me to upgrade my account every time I log in; it's rude, ungrateful, and tells me you don't care about my experience with the service I am already paying for; you just want my money. Don't even ask me to upgrade until I have hit 75% of my storage capacity, and then, only do it once a month or so.

These messages, when they do become appropriate, should only appear ONCE per session at the MAXIMUM.  Use the banner for new features, sparingly, and once I dismiss it, it should absolutely stay gone for the rest of that session. What's ridiculous here is that it is not even a new feature, but a call to spend more money.

The popup is the most annoying, and it happens at nearly every major screen transition. What I mean by that is:

On login = popup

Click to settings = popup

Click to home = popup

Click to a screen or menu option under "More" grid button, Dash, Replay, Docsend, Reclaim.ai...these are external links so the bug does not happen here. However, if the user selects the top option, the Dropbox home link, then popup = true.

Thus, the popup happens at nearly every major screen transition.

I didn't test/document extensively for the banner, but it does also annoy me, and seems to be just as persistent as the popup. It takes up valuable screen real estate, and the popup requires an extra click CONSTANTLY. Both of them absolutely ruin the UX, and truly make me hate your product. As for the button, meh, but wait until the user hits a meaningful percentage of space used before marketing more.

I took 13 screenshots of this phenomenon, but only uploaded the one picture for now, as I do not have time to redact my personal information out of every photo in order to post publicly.

Based on the timestamp of the photos I took, this even happened 10 times in 7 minutes. The other three screenshots I took roughly half an hour later, and was able to easily replicate this bug at each transition to a new major screen, all within moments of one another. 

I see from the posts on this forum about this subject that this goes back at least 3 years, and up to 2 months in this very thread, which has been marked as "Resolved." It obviously isn't.