on n1, invis pots were genuinely my favorite pot, and i thought they added something unique to fights. imo it's more fun when u have no idea who u are fighting, and the enemy doesn't know who u are either
i think that invis should obviously make the player invis on map, but still keep the compass how it is. the compass can be unreliable sometimes when u switch to food to eat, so when doing a complete stealth attack it can really screw u up. invis would be more expensive and take up more space since u need to carry multiple pots because it doesn't last forever, but a much more reliable option. so it'd be something that u wouldn't use all the time, but every so often when u need complete stealth
another thing that i think would be really cool is if it stopped the player from showing up on /near. i've seen people complain abt /near, and i think this is a great nerf while making it still viable. this would add to the complete stealth attacks since the enemies have no way to know who or how many players are near, if any at all. most sieges have players spamming /near on both sides so it's impossible to do a stealth attack
invis would definitely add some fun and unique variety to sieges and fights, which have gotten a bit stale recently imo. it also isn't that op, and a compass would still be used way more often because invis takes up precious inventory space. i don't see any downsides to this at all, but if u do, then please comment abt it :)