The new law makes wholesale changes to the law relating to domestic leases.
For instance, any notice to quit issued prior to 29 March 2020 to take effect after that date is invalid. Any notice to quit issued after that date is invalid.
This does not mean that a landlord cannot remove a defaulting tenant. However, the new law is designed to push landlords and tenants to a tribunal (including, but not limited to, VCAT) to resolve disputes. Presumably, the tribunal can order a tenant to vacate the property.