Sorry for my reply. I am only an F-Secure user (their home solutions).
I use the following program: F-Secure Safe. There will be a change in the look of the program (UI)?
There is always 'a change' in the look of the user interface. But not always such change is about global redesign or fresh feelings. Usually, it is about small improvements and tweaks for usability/guidelines and so. Basically, it is also depends on your F-Secure SAFE build (in use). Since it is on-going solution. But if your experience is about latest stable build - possible to not expect something too fresh with UI (but if it is - it is can be a good surprise).
Just interesting to ask other users about next concern:
-> with recent TPs releases - I start to notice more often (compared to previous time) that Windows Security Center with 'trouble'-mark at launch system. Wordings like "security solution is not loaded; restart it" or something else. It is quite visible delay between states when system is loaded already (even FS Protection is already possible to use; main user interface / other parts of interface) and when Windows Security Center (and its tray logo) is still about troublestate before switch to "good/safe"-state.
I noticed it with two systems (Windows 10 64bit 1803). But I am not sure what if it is not a trouble; or if such delay is pinned to my device/systems rather than something else. Or, at least, does it normal (how long should be delay for Windows Security Center state about AV from 'trouble' to 'good')?
In Win 10 64 1809 with IS TP I've got notifications from the systray that the Virus protection is turned off farily seldom. I have associated that with an upgrade as in the main GUI, when I get there, is says that the system is protected. Generally that "not protected" disappears by the time I close the main GUI.