Tricky question, it's not only about what kind of paper and weight, it's about the why, right?, well you can physically feed a max weight of "X" for different Canon printers, the reason they tell you to use only genuine Canon paper of A, B or C weight has to do with the paper properties regarding ink absorption.
Remember: being able to feed 100g, 120g, 140g, 160g, etc. on your printer only addresses the weight it can handle with physical parts, not the behavior or response of the paper when you are already printing, or if you are printing borderless. The thing is they don't recommend using beyond X unless it's official genuine paper because it can damage your print head. HOW? why? paper can handle so much ink, it can change weight and also curve itself actually touching the ink jet nozzles and damaging them inserting particles there. That's something you wouldn't want to happen.
So in short, use paper that your printer can handle both psychically by the printer rollers AND without touching the print head nozzles or curving when coming out, borderless printing or not.