Source?

I have post history of going through their JS, this is a Google-sucks thing, full stop.

“Checked to see if there was any delay” is not entirely a good argument when I have post history of going through the JS.

That 5000ms wait is still in there; if I had to guess, your Pihole is preventing any real issue there.

Any non-chrome browser will experience a 5 second delay (IF they have an adblocker)

Not true. The implicit wait of 5000 milliseconds is hard-coded to non-chrome browsers.

User-Agent changer fixes this issue completely for me