Do away goals count as double in Carabao Cup semi-finals, and do extra time count if matches are even?

ARSENAL and Liverpool meet in the first leg of the Carabao Cup semi-final.
The match was originally set to be the second leg, but after the Covid outbreak in the Liverpool camp, it was rescheduled. The winner faces Chelsea in the final.
Do away goals count in Carabao Cup semi-finals and do extra time count?
Cup football is fun but can be a bit confusing at times.
Especially when the rules seem to change from competition to competition.
If a Carabao Cup semi-final ends in aggregate after two legs this season, the away goals rule will NOT apply.
If this happens, the game will go into 30 minutes of extra time.
There’s no gold target or anything like that – and if the sides are still on par after ET, those are scary penalties.
Does Carabao Cup have VAR?
From the semi-finals to the final, VAR WILL used in Carabao Cup.
But it will NOT be used in the rounds until the semi-finals this season.
VAR was used in the 2018/19 Carabao Cup but the EFL chose to scrap the system last season on the grounds that it was only used at Premier League venues.
This caused controversy especially in the FA Cup when Man City were awarded a controversial penalty at Swansea and no VAR was allowed despite Liberty Stadium having installed this system.
https://www.the-sun.com/sport/premier-league/222204/carabao-cup-semi-finals-away-goals-rule-extra-time-draw/ Do away goals count as double in Carabao Cup semi-finals, and do extra time count if matches are even?