I've found this that might be part of the answer:
https://en.wikipedia.org/wiki/Left-foot_braking
Also this from the 'trail braking' entry at wikipedia: "
In four wheel vehicles trail braking pertains to using the brakes past the corner entrance (as opposed to the normally taught practice of releasing the brakes before starting the turn). This practice is used for creating
weight transfer towards the front tires, thus increasing their traction and reducing
understeer. It works best in light vehicles that have their brake bias to the front.
In order to be properly performed, the driver must have excellent sense of the vehicle's behavior and be able to keep the braking effort within very tight limits. Excessive braking effort may result in the vehicle heavily understeering, or - if the brake bias is set to nearly neutral - in the rear wheels locking, effectively causing the vehicle to spin as in a
handbrake turn.
Once a driver has mastered trail braking, it can help enter the corners at higher speeds, or avoid an accident if the driver has entered a corner at a speed exceeding the vehicle's (or driver's) capabilities.
" here:
https://en.wikipedia.org/wiki/Trail_braking
I've just been doing some practice of these techniques in a simracing environment and feel comfortable with them. I believe I'm faster using them but I'm sure this is very subjective and others will go faster with traditional right foot braking.
Most simracers I know prefer the use of auto-clutch, auto-blip and paddles for all cars... That, I think, makes you faster but it doesn't feel right to me when driving a manual car with an H-shifter in real life... I'm a little bit picky for such things.
Hope this helps.
Regards,