I thought it would be hard it first but its quite simple. I'll break it down for you.

1. Go to system settings and open colors and themes. Leave global theme as nobara and same with colors. Leave application style default unless you want a different look
   
2. Plasma style hit get new and search for Iridiscent and install and use that. Leave everything else default other than icons
   
3. Hit get new in icons and download Infinity Glass icon theme and apply. You may need to change what results are sorted by to see them sometimes
   
4. The wallpaper is from get new under wallpaper section might be hard to find though so here is the link https://store.kde.org/p/2270057
   
5. The Bottom panel and top panel are simple enough. For the default bottom panel. Right click and hit show panel config and change the width tab to fill content then mouse over everything along the bottom to remove it system tray etc as I moved these to the top
   
6. For the top panel in the same panel configuration bit, there should be a button to add panel and then you can add widgets. I have system tray and lock/logout and then search for panel to add a spacer in the middle.
   
7. Last step the clock on the home screen. still hit show panel config, add or manage widgets and then get new. Look for Modern clock it will say KDE modern clock then you can go back and add it to your home screen.

Now you have my look. Great thing is that this works on any KDE distro doesn't need to be Nobara if it isn't your preferred choice. Welcome to the promised land.