Every new version of Windows makes users adjust and learn again how to use it and most of the things new versions of Windows implement in their GUI is from Linux distributions.
But they don't really have to make any changes to their installed programs or any files. Especially for programs with only Windows implementation, some don't run well in Wine and VMs are rather resource intensive.
And I know that many were developed to look like Windows for people to make a switch, but it proved to be not as important to new users as other advancements that a new different GUI brings. So in short, if there was something good about Windows, Linux would implement it, but if there is something good about Linux, Windows will not implement it is quickly, since they don't make decisions about quality, but what makes them most money. They have a monopoly, so the free market rules don't apply to Windows, but still apply to Linux distros. Windows doesn't have to care about giving better software, they have no competition.
I would say that most Linux distros that have been extensively tested do not have the same UI as Windows. It's not easy for people to compile apps from scratch for applications that have not been pre compiled.
As for the security, there are a lot of 0-days in Windows due to corporate priorities and closed source.
Open sourced=/ No exploits. Even if its open sourced, it is still possible to have zero day exploits (Heartbleed).
And when it comes to Wannacry, a lot of users still use XP, that didn't get the patches as Windows ditched it.
Which every user was given a chance to upgrade. It isn't fair to blame Microsoft for not releasing patches for them since they have already dropped the support for a long time.
You can use Windows very conservatively and still get malware and since you mentioned Wannacry, it is one of the examples. It spread across the LAN network as a worm using exploits discovered by NSA and leaked by ShadowBrokers. The whole structure is broken and hopeless. There shouldn't be a place for closed source software on such a low level like an operating system.
A patch was released pretty fast after the exploit. Isn't it up to the user to update it or not?
↓ touché