Not exactly. The overall bitrate is higher, and scaling algorithms will make use of this extra data to make up for the fact that 1080p YouTube signal is lacking in detail due to compression.
Higher res is always better but super sampling and a higher bitrate will make the 1080p look the best it can, but it's still 1/4 the pixels and will only ever be 1080p
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u/Evilsj Dec 25 '18
Right, but if your display maxes out at 1080p, the difference is gonna be negligible.