Both are Qubes 4.3. But the one is fresh installed. Initially on that computer was installed Qubes 4.2 and I always used the stick there. Then I tried in-place upgrade to 4.3 but it failed because of the way the OS was installed (external bootloader). So I had to perfom the fresh installation of Qubes 4.3 (again with external bootloader but with a little corrected commands). The other Qubes 4.3 (installed on the other computer), that I used to test the stick’s operation, was 4.2 upgraded in-place to 4.3. This OS installed by default way (internal bootloader).