I'm keeping all my EF lenses and will use the EF-EOS R adapter when it's time for me to upgrade to a Canon mirrorless. I have the 16-35 f/4L IS, 24-70 f/2.8L II, 70-200 f/2.8L IS III, 85 f/1.2L II and 500 f/4L IS (November 2024). These lenses are stellar but there's nothing distinctive about them, everyone has/had them and from where I live they're all over the used market. It's just that photography has been a very low priority on my list for the last 10 yrs and I just can't justify the high prices of the RF lenses. I'm keeping all my EF lenses not because they're special, it because they just work .