Yes, actually. See https://upgradedpoints.com/chase-ult...travel-portal/

The redemption value of UR points in Chase travel portal using the Chase Ink Business Cards is 1.25 cents per point, instead of 1.5. Therefore, you don't get as much value booking thru the portal relative to the Chase Sapphire Reserve.

The same general thought process applies, but the threshold should shift to 1.25 cents per point (plus/minus adjustments for other considerations), instead of 1.5 cents per point. This makes transferring to United a more competitive option, under the assumption that saver award availability with favorable schedules exist. If only standard (90,000 mile cost) award availability is there, the Chase portal probably remains the better option.