Hey, thanks for sticking with me so far. ;)
You don't have to try the new demo if you don't want to, the main reason I update the demo is to have new players get a better experience. (and so I don't get bug reports or comments about already fixed issues)
So yeah, I understand achievement popups and such can be a bit immersion breaking.
So thanks to Boscoe's comment down below I now have plans to add a button for enabling/disabling in-game achievement popups. :)
Thanks for the feedback!