The L340 should never be bought under any circumstance.
It has a flimsy plastic chassis that would probably break under its own weight. Cooling is atrocious, with only 2 shared heatpipes for both the CPU and GPU. Temperatures are deceptively low because of the 35w power limit that lenovo sets, which can only be hit under CPU only loads with an undervolt. On stock configurations with both a CPU and GPU load (that is, in a game), the CPU is limited to 25w (it is worth noting that this is the i5 9300h configuration, only God knows how badly the i7 9750h will perform). Not only is the CPU power limited, its performance is further gimped by only having single channel, single sodimm slot, which means the laptop is also limited to 16gb of RAM. Notebookcheck has the GA502 beating this laptop in performance, and the GA502 is known to be a bad laptop most of the time. To add more fuel to this dumpster fire of a laptop, it does not come with a bracket and cable to connect the hard drive, and lenovo charges you 135 USD for those (source).
There are now variants of this laptop with a 250 nit screen (which means it's very dim, and has really bad colors) and HF variant cpu. The HF cpu means that there is no integrated intel graphics, which makes battery life suck. This makes this laptop, which is already bad in the first place, even worse.
TL;DR, never get this laptop under any circumstance, period. Getting one is worse than getting a death sentence.