Have the same problem since November 2023. But when I use only external display it's working fine... Also, when I switched my graphic card to AMD it's also fine. I don't understand why Intel HD Graphics doesn't work great with EN, because before October updates everything was ok. And still moment I don't have solution. I tried full reinstalling, use other EN account and use other Mac user profile.
MacBook Pro 16 2019 (I7, 32GB, 500GB).