Is this a prebuilt system from dell, hp, other...?
Some may have limited upgrade options, the first being the power supply unit may not be capable of running an additional graphics card.
Check on the pc maker website for the full component specifications and possible upgrade paths.
If you supply full system specs., someone may be able to offer suggestions on upgrading.
My PC- Ryzen 5 5600x, B550 aorus pro ac, Hyper 212 black, 2 x 16gb F4-3600c16dgtzn kit, NM790 2TB, Nitro+RX6900XT, RM850, Win.10 Pro., LC27G55T.