70-200 Canon, any version, just attach a plate. As long as the plate has a lip at the rear it's a solid reliable solution.
100-400 II - Canon really screwed us with this one. So I went with replacement foot. The back of the removeable Canon foot is curved so the lip on the back of a plate cannot function as intended, to prevent the plate twisting.
Larger lenses benefit from a foot replacement usually.
Sigma 150-600 Sport, which weighs almost as much as a Canon 500 II, has a great foot. It's solid and has the same bolt pattern and bolt size as a 5.4kg Canon 400 2.8 L IS.
Further, Sigma outdid themselves and provided 3 threaded inserts in the bottom of the foot. So I just attached a thin, single dovetail plate using all 3 screws. Very small weight addition and with 3 screws it's as solid as a replacement foot.
For the super teles, replacement feet are usually longer than the stock foot allowing balance to be achieved once mounted on head or gimbal with most configurations.
They are usually lower height, making them smaller for packing and usually better balanced on a gimbal. depending on the size of your fingers they may make it more difficult to use the foot as a handle if you want to use it as one.
Accessories: I attach a bracket to the foot for night use. The bracket has a torch, flash and a remote switch for the torch. For this reason, in the case of a Canon 70-200, I would not use a plate designed for it, I would chose a longer plate, as long as it has a lip at the rear. The 100-400 II Kirk foot has double dovetails at the front so I can attach a bracket without losing any balance adjustment range.