Canon's compact telephoto zoom for the RF system — the RF 70-200mm f/4L IS USM collapses to an incredibly short 149mm when not in use and delivers superb image quality with up to 5 stops of optical image stabilisation. An ideal travel telephoto for the EOS R range, it is dramatically more portable than the f/2.8 version.
Select up to 2 cameras to compare against the Canon RF 70-200mm f/4L IS USM. It's always pinned as the baseline.
No significant limitations identified — this is a versatile camera without obvious weak spots for most shooters.