Graphics cards are getting bigger, hotter and more expensive – and that first one is more of a problem than you might think. With the RTX 4090 and a whole family of oversized GPUs on the way, those tiny PCIe slots on your motherboard are taking on an incredible amount of weight, such that even mid-range cards can sag and bend over time.
The best way to prevent this is with a brace, which pushes up from the bottom of your case to the far end of the graphics card, holding it level and preventing all that force from affecting the card or the PCIe slot. You sometimes get a support brace like this free with your graphics card, but otherwise you can pick one up fairly inexpensively from a range of manufacturers.