This seems very high and something we will look into. I wonder how much of this is related to new versions due to active development. We'll look into it!
I'm at 414MB in my cache and I've only been using since last Friday iirc. It also hasn't been my main Lemmy app the whole time, and I haven't been on it a ton
I just looked and I also got 2,2gb. Which seems like a lot to me, but I'm also using primarily liftoff - and I'm a heavy user (gotta fuel my addiction since reddit became a no no)
Would be interested in how this compares to other lemmy apps/reddit, as data usage is not no concern for me