pg_probackup3 currently has the following limitations:
The remote mode is not supported on Windows systems.
The Postgres Pro server from which the backup was taken and the restored server must be compatible by the block_size and wal_block_size parameters and have the same major release number. Depending on cluster configuration, Postgres Pro itself may apply additional restrictions, such as CPU architecture or libc/icu versions.
pg_probackup3 only supports Postgres Pro and PostgreSQL 15 or higher.