USA, UK, and Canada have no testing and no quarantine on arrival. Australia 7 days on return - quite doable if you work from home, will probably be dropped in a month or two.
People are booking international holidays starting December - that’s a fact. A lot of people have credit they haven’t been able to use for 2 years. Hotels can easily be cancelled with no payment.
Cruises probably out till mid next year.
No requirements to wear masks in USA, UK, Canada.
Australia mindset needs to change.