If you're working in a video codec where a GPU has built-in encoders or decoders, you should have one of those cards. Almost doesn't matter where in their product lineup you are.
The RTX 4090 has dual encoding modules, which could be a big deal since nVidia typically has the best supported encoding hardware.
On the other hand, Intel has the best overall support for codecs in Quickpath, which can be enabled from either CPU or a GPU.
In either case, you get the same (single) hardware encoder when you buy whatever GPU of a given generation. A 3050 and a 3080 do the same things, for example. It just comes down to what software supports which hardware encoders better and which hardware encoders are fastest.
Many photo editing products barely use a GPU for anything, apparently, but plenty of add-ins like Topaz Denoise, make heavy use of them. In video editing, it depends if you've risen out of the slums of consumer stuff before hardware encoders do much of anything.