How can we check a Brisbane international transit between different airlines?

Compare the airport's minimum connection guidance with your scheduled time and ask the airline what happens if the inbound flight is late. Keep the booking reference handy.

Check current Australian Home Affairs transit and visa rules for your nationality and exact itinerary. Do not use an old forum answer for an immigration decision.

Ask the issuing airline whether the baggage is through-checked and whether the Brisbane transfer stays airside. Different operating carriers do not settle that question by themselves.