Buildapc

I used this for comparing the CPUs https://www.cpubenchmark.net/singleCompare.php.

Okay, at least that's not userbenchmark but what I said still applies: this number does not tell you anything of value.

My friend mostly works with unreal engine.

Oh, that's quite something else than 3D rendering.

It's been a while since I fiddled with it it but I didn't do anything significant with it.

According to Puget systems' benchmarks, this is one of those specific tasks where Intel CPUs are comparatively good but even here they're basically only about on par with what AMD has to offer.

Something like the 9900x smokes the 14700k in almost every other productivity benchmark though.
If you care about productivity performance first and foremost, the 7950x could be a consideration at 16 high-performance actual cores which smokes anything Intel has to offer, including in Unreal. It's by no means bad at gaming either but Intel 14th gen is surprisingly competitive against the non-x3D AMD chips for gaming purposes.
Though, again, CPU doesn't matter all that much for gaming; GPU (and IMHO monitor) are much more important. (Some specific games such as MMOs are exceptions to this though.)

Its their for them to be able to work basically

As in professional work? Shouldn't their employer provide them with a sufficiently powerful system then?