Minecraft Windowed Borderless

I think this has been mentioned before but there are some things that weren't said which relate to my issue and what I need help with; whenever I go into fullscreen in Minecraft it's almost like it goes into fullscreen-windowed borderless which causes the game to adapt a "v-sync type of feeling" whilst moving the mouse around and playing in general.

Common example:

• I'm still able to see notifications in my bottom-right "default Windows 10 notification corner".

It's hard to understand but you'd get it if you were in my situation, which hopefully some of you are(/were)! Thank you.

Best regards,
Ayduhm.