Depends on the IDE you are using. AFAIK all ide’s do not use gradle/maven for compiling/error checking.
For Eclipse you have to install the official lombok plugin.
For IntelliJ there is also a lombok plugin, and you have to enable annotation processing in the compiler settings
I guess for Netbeans there is also a solution
Lombok does offer quite a few nice features. Why writing getters/setters? They are just boilerplate and increase the number of lines you have to scroll.
And the more advanced stuff like @Builder are pretty nice because you don’t have to refactor your Builder/Factory