some people have played kind adc to like masters but i personally dont like lane kindred so i cant really give a good opinion

Tbh it’s just a “the more you play” the more you’ll know type of feel. Just like sometimes you’ll save your flash because you know you’re already dead. Sort of the same. If you know you’re going to win the fight stall out as much as possible or if your carry is about to die use it

like solava played it's one of those things that just comes with experience and judging if using it will help your team or the enemy team more. sometimes you just have to not use it because your team will win the fight without you and you dont want to save an enemy carry

Mostly try to avoid using your ult in team fights that are going equally or your team is dealing more dmg. You never want to use your ult and save your enemies from dying and cause them to potentially escape or kill your allies after the ult. What i like to do is, use my ult to save my fed teammate from a ranged skillshot. Also if you have an AOE Stun teammate, you can ask him out to combo ults with you in teamfight. Stunning the enemies right before your ult ends literally gives free kills to your team. In conclusion, mostly use your ult to 1v2 enemies in alone fights or save an teammate outside of team fights.. Yeah you can use it in teamfights but only in specific scenarios like the enemy dealing massive damage in an instant and you just have to use your ult to save your team from getting one shotted and potentially use that period of undying time to deal damage to enemy so you can equalize the fight.

Most of the time I try to put my ult where my team can get in it easily and the enemy team has to hard commit to fighting in Ult. I also try to ult near walls you can hop over for a quick escape or use it to stall for my team to come clean up after I die

its a zada