It's strange though, yours is completely in reverse, I was shocked also at how fast they released the new update, so I figure that's why it's having this issue, will just have to wait for the patch update to come and hope for the best.

Which model are you using?

So I guess we gonna have to wait until they release a patch, but honestly from now on I might have to wait before rushing for an update, the drainage is really bad.

It's the new One UI 5.1 update, it's causing heavy battery drainage on most Samsung devices, I'm using A52s experiencing the same problem.