I’ve been using NetGuard for many years to block net access for apps that shouldn’t need it. I haven’t noticed any impact on battery life and haven’t run into issues other than what one might expect (for example when it turns out that the blocked app refuses to run without network access)
Didn’t know about RethinkDNS, looks neat, will give it a try sometime.
It’s been mostly Isaac as usual but I picked up Shotgun King: The Final Checkmate yesterday and I like it a lot. It’s a fast-playing roguelite with a neat idea that’s implemented well. The game mechanics remind me of Hoplite on mobile.
The game is currently on sale and has a free demo. It has good controller input and low resource use, a great fit for the Deck.