As someone who has done everything in warframe and destiny 2, warframe as of 11/17/2021, has more to gain and more to earn then destiny 2 so I would recommend if you want a good grinder to try out warframe I've just started over on this account and have been having a blast, Until destiny 2 gets more content in rotation I'll be grinding warframe and I highly recommend you to switch to warframe for a good grinder.