Plugin Laser Loader is very small (4,9 KiB) and fast. The plugin adds a little loading progress bar at the top of the page to indicate that the next page is loading. You could see a similar UI pattern on YouTube or Medium.
Demo: https://codecanyon.net/item/laser-loader-stylish-progress-bar-preloader/26005913
https://workupload.com/file/FEAnJxMPmBx
https://www.upload.ee/files/16297375/laserloader201.rar.html
https://pixeldrain.com/u/3VFsmHEL
https://nippyspace.com/v/63436d
https://www.mirrored.to/files/6BTTEBDE/laserloader201.rar_links
https://mirrorace.org/m/7Yxe8
https://krakenfiles.com/view/BT9hqOY7qE/file.html
https://hxfile.co/12m1ev7633i3
https://gofile.io/d/DnMIJg
https://ddownload.com/7bcmu8hyxi27
https://dbree.me/v/77565d
https://1fichier.com/?gsc31xog2u3nu05wme60
https://www.upload.ee/files/16297375/laserloader201.rar.html
https://pixeldrain.com/u/3VFsmHEL
https://nippyspace.com/v/63436d
https://www.mirrored.to/files/6BTTEBDE/laserloader201.rar_links
https://mirrorace.org/m/7Yxe8
https://krakenfiles.com/view/BT9hqOY7qE/file.html
https://hxfile.co/12m1ev7633i3
https://gofile.io/d/DnMIJg
https://ddownload.com/7bcmu8hyxi27
https://dbree.me/v/77565d
https://1fichier.com/?gsc31xog2u3nu05wme60