Playing on Ubuntu 20.04.4 lts desktop firefox browser 103.0 (64-bit).
Going through the tutorial and game is great so far.
Noticed a quirk in deploying troops; moving the slider all the way to max deploys the troops but doesn't jump to attack phase.
If you subsequently click on a zone to attack from there is no response.
I have to go back to the deployment window, back it off one or more, and click on a zone to deploy the last troop to advance to attack phase.

use to be it never automatically switched phases I think. Maybe a solution for you; There should be a button in the top left that says next.

glad you're enjoying the game bro! :)

Thanks, I am enjoying the game.
I did finally notice that there is a series of buttons on the top that change the phase.