Cards that says "activated abilities can't be activated" they do NOT work it all
Cards that says "activated abilities can't be activated" Like "LawMage's Binding" and "Faith's Fetters" they do NOT work it all. Players that have enchanted permanents with those cards/enchantments still can activating abilities like if those cards didn't exist.

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Betaguy#50681 commented
i lost a ranked game and match, because Saint Elendas Faith's Fetters does not work on Teferi, Hero of Dominaria!
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tkrEiDoloN#44550 commented
this currently is still a bug! faith's fetters attached to a tap card and it still was able to activate.
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Chay#67651 commented
Demotion doesn't work. Neither does Trapped in the Tower. It's really annoying
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Goliath#83988 commented
Another example: Nahiri's Binding on Orah Skyclave Hierophant does not disable it's ability to return a card from the graveyard.
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Clem17#64743 commented
My "Ashaya, Soul of the Wild" is enchanted by "Ichthyomorphosis" so he should lose his abilities, including "Nontoken creatures you control are Forest lands in addition to their other types." but my creature are still Forest lands.