This script disables YouTube's new rounded corners (reverts back to the previous layout before 2022 with extra stuff included.)
*Note: If you want to install the userstyle version, You can get this from here.*
https://userstyles.world/style/11668/youtube-non-rounded-design-css-version
Recommended scripts to install here:
Proper Description (reverts back to the pre-2022 watch UI) - https://greasyforks.org/en/scripts/440613
Restore Username from Handle to Custom - https://greasyforks.org/en/scripts/468740
Action Buttons Fix (if you use 3rd-party YouTube scripts like SF helper):
https://greasyforks.org/en/scripts/466532
As a bonus, you can just install the Return YouTube Dislike addon from here:
https://returnyoutubedislike.com/install
