2048 bit RSA can have at most ~2022 bits of entropy. It can and often does have much less¹, depending on how the keys were generated (debian). That may or may

2048 bit RSA can have at most ~2022 bits of entropy. It can and often does have much less¹, depending on how the keys were generated (debian). That may or may not be an issue, depending on the resulting distribution of keys, i.e. how usable is the information that only a teeny fraction of keys are possible (Infineon). ¹ Entropy interpreted as the number of possible, roughly equal-likelihood outcomes.