There are several commands that the rule opPlayerNoCheat misses.

Here are the ones I have found so far:
/fill - should be disabled for the same reason /setblock is

/enchant - allows enchanting tools without xp/books

/experience and /xp allows giving self or others xp.

/advancement

/effect - give saturation to self / instantly kill others
/defaultgamemode - can really cause issues
/kill
/data - /data modify block 542 66 903 Items[0].id set value "minecraft:diamond_block"

Rule opNoCheat is not designed for disabling all possible cheaty commands, but for disabling commands that are cheaty and can be unintended triggered

e.g.

• /gamemode: via F3+N
• /teleport: via clicking in minimap mods

I won't add commands that don't have unintended triggering cases

Since you already have op permission, if you do want to cheat, you can just disable this rule with /carpet opPlayerNoCheat false