Let me apply a bicubic filter in the "Rescale Output" option

I need to record and stream at different resolutions, but the "Rescale" option (which makes it possible) does not have a filter option.
I compared three footages:

1- 1440p Downscaled to 1080p with bicubic
2- 1440p Downscaled to 1080p with bilinear
3- 1440p Rescaled to 1080p (no filter option)

While 1 looked sharp and clean, 2 and 3 looked blurrier and also exactly the same, which makes me think Rescale default filter is bilinear.
My suggestion is adding a bicubic option in Rescale, if possible.
 
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