As you have the laptop and monitor already just test it?
Generally speaking any modern gaming laptop will throttle itself back when the temperatures rise (funnily enough just like desktops will do as well - see boost bins on Nvidia cards). They should not overheat in the traditional sense unless the main intake and exhaust vents are outright blocked.
Some gaming laptops also intake through the keyboard itself (My old Legion 7 did this as an example) but will run fine with the lid closed.
Jarrod's tech shows temperatures with the lid closed in all of this reviews and the deltas are generally small with the odd exception (again depends if the laptop intakes through the keyboard or not).
At a guess a Erazer with a 1650 is unlikely to intake in this manner.
If in doubt the laptop could always be run in "tent mode" with the lid slightly ajar to allow airflow across the keyboard area.
Generally speaking any modern gaming laptop will throttle itself back when the temperatures rise (funnily enough just like desktops will do as well - see boost bins on Nvidia cards). They should not overheat in the traditional sense unless the main intake and exhaust vents are outright blocked.
Some gaming laptops also intake through the keyboard itself (My old Legion 7 did this as an example) but will run fine with the lid closed.
Jarrod's tech shows temperatures with the lid closed in all of this reviews and the deltas are generally small with the odd exception (again depends if the laptop intakes through the keyboard or not).
At a guess a Erazer with a 1650 is unlikely to intake in this manner.
If in doubt the laptop could always be run in "tent mode" with the lid slightly ajar to allow airflow across the keyboard area.