it uses the gecko engine, what are you talking about?

Ah, I am way way out of date, sorry! It switched to Gecko back in 2018. Turns out I had tried it out a very long time ago.

https://support.mozilla.org/en-US/kb/whats-new-firefox-focus...

It's real Firefox, just not the complete Firefox browser (with extensions and all that) mentioned on this post.

you said it used blink/chromium engine, just correcting that is all.