15 second boot time is a non issue. It's looking for something to complain about. Leave it in sleep mode if you are that manic.
It is indeed a bad choice for gaming, and I think your analysis is myopic . The 9700X is a better gamer, cost $50 less, and has an upgrade path = no brainer. The 7800X3D can be found on for sale/trade forums for under $400. We had 2 sell here recently. Even at $480 it would be a better buy. And of course hold value much better. The 9800X3D makes cost per frame bigger bar even better.
Again, the only reason to choose arrow for gaming is purely emotional/amygdala making the decisions. Which is fine, but don't gaslight yourselves, the data, pricing, and one and done status, does not support any other conclusion.
I am not responding to you personally, you already have an opinion I am unlikely to change. I am using you as a foil to address lurkers and searchers, so they get the straight dope with the math to back it up.
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Rapture Lake turned out to be a dumpster fire, as has been pointed out above.
OP can build arrow on nothing more than a whim if that's what they want to do. The retailer would certainly love to get a dust gathering board and CPU moved that's for sure.