Below is the image when checking the activation status with License Manager console mode after in-place upgrade:

Steps to Reproduce
Perform an in-place upgrade for Linux OS.
Solution
This is the expected behavior for Strategy running in Linux OS.
For in-place upgrade of Strategy in Linux OS, if the license key has not been changed and no server product / web product is added or removed, the installation will stay in active mode, and the re-activation is not required.
For Strategy running in Windows OS, re-activation will always be required after in-place upgrade.