Hardware

Yes it is minimally at least in spirit the successor to the Centos distribution. Though if you are new to linux. Something like mint would probably be a better starting point. The nice thing about Centos and Rocky though. Are that their long-term support is some of the best. And for things like DaVinci resolve. They are one of the few distributions technically supported by the developer. You can get resolved on other distributions. They just aren't officially supported.

The main system I run on is a 6th gen i7, 4 cores, 8 threads. 16gb ddr4 with a second hand AMD 5400 with 4gb vram. If you're doing 3d. Which I assume you are, vram will likely be the first hard wall you might hit. If your scene takes up more than the total vram of your system your speeds will likely crater or crash outright. After that your system Ram is the next big determiner. 3D scenes can be very data intensive. Even if you have a video card with tens of gigabytes of vram. If you have to transfer small chunks through your system Ram to get it there it's still going to slow it down. After that a CPU is important. But less so than you might think. Rendering you are going to prefer to do on your GPU or APU. It is exponentially faster than doing it on the CPU alone. Though modern blender allows you to use both at once. As well as multiple graphics cards.

Honestly just about anything from the last 10 years is an okay starting point.