Is it possible to design the notification bar as well? It looks quite confusing with lots of options next to it. I mean, if the notification could be something similar to other social media profiles, have you worked on something like that? These other options like profile, bookmarks, chat, etc., on the right seem a bit excessive to me. So any possible way to remove or turn this off? I mean yes css would do the work, but I would have to make a lot of changes then. Any alternative to it?
질문에 스스로 답을 하신 것 같습니다. 
원하시는 것에 가까운 기존 #customization:theme-component를 보신 적이 있으신가요?
없다면(혹은 비슷하지만 충분히 가깝지 않다면) 직접 디자인해야 할 수도 있습니다.
You could use Custom User Menu to show user options in it’s own menu and then just hide the tabs on the notifications menu entirely with
.user-menu.revamped {
// target both desktop and mobile
.menu-tabs-container,
.tabs-list {
display: none;
}
}
I’m agree with the OP, I hid a few selectors on my self-hosted instance with CSS. It’s kinda easy to do but not solve all the issue.
The same applies to the overall user profile (horizontal scrolling, repeated icons, plenty of options visible), but I remember some core team member telling us they are working on this
Wow, thanks for that. Definitely I will try it, you are doing great!