Right side overshoots the screen

[KBbitsP]

Please notice the greyish background towards the right part of the screen. This is happening at 100%.

example link : http://localhost:9090/accounts/a8cf88f7-0852-4037-aa91-9528df181dac/invoices/dd0c875b-2b13-4796-b10e-61ac3d957c9f

Loom : https://www.loom.com/share/c19c22897c4844e5a5de388c703dec48 recorded by Reshma, visible in her screen also at times.