I have a new Alienware R12 with lower specs (i7 11700f, 3060Ti) which costed ca. 2000 euros (vs. the 4000 you mention) and I have smooth play at 4K with settings high to ultra.
Only complaint: the noise of the fans and the concern about he high CPU temperatures (always in the +90C area). If you can live with the noise, and you buy the extended guarantee time span, should be fine…
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