Can I use the 12v/10a port and the 12v/30a port at the same time?

Wondering if I can plug my ICECO cooler into the 12v/10a port using the DC (cigarette) charger provided by ICECO while also using the RV aviation plug purchased from Bluetti in the 12v/30a port to power my DC fuse box?

Yes you can use both at the same time.