Is this build a good alternative to a console?

[SpyderTracks]

“Performance Expectations: - The RTX 2080 Ti is one of the more powerful GPUs from its generation and can handle 4K gaming reasonably well” while I agree it’s not the best GPU to play at 4K, it does work well.

That was at the time, it's not relevant now, games constantly update and upgrade to new technologies, a GPU from 3 generations ago will not be able to maintain the same performance in newer titles.

You seem to be expecting a PC to be like a console, it's an entirely different thing, you can't avoid upgrading the GPU every few years, doesn't work like that.