WriteFreely is pretty nice, it uses the ActivityPub protocol and is thus a part of the Fediverse - just like Lemmy and Mastodon.
Andromxda
Probably FriendlyCaptcha and mCaptcha. Proton is also developing their own captcha, but I'm not familiar with it.
Is that what people use to freeze Apps nowadays? I'm curious, because the last time I used a rooted Android device was like 7 years ago.
You can't and shouldn't root GrapheneOS.
It does. And exactly that is the problem. Because NetGuard is already set as your VPN, you can't use another VPN app.
You mean hallucinations like this one?
Well, they manually removed that one. But there are much better ones:
I don't think adb would let you remove it, unless you have root. But you can try it out in Android Studio's Emulator, it essentially provides you with with an Android VM on your PC. You can access it straight from adb, and it doesn't matter if you break something, as you can simply create a new virtual device.
Maybe try some more troubleshooting on GrapheneOS? Also, I'm sure that the folks in the GrapheneOS Matrix channel are ready to help you out. You should be able to get Android Auto to work somehow.
Regarding AFWall+, do you actually need it? GrapheneOS has a built-in firewall, doesn't that work well enough for you? And can't you use something like NextDNS instead of AdAway? Also, the Graphene folks might be able to help troubleshoot the AdAway problem.
If you are going to switch to another OS, I recommend DivestOS. It's the only thing that even comes close to Graphene in terms of security. It's based on LineageOS, but has some significant security improvements, and for example allows for bootloader relocking. It's the only other OS recommended by the Graphene devs.
This is about free VPNs.
Check out Njalla, Kyun, 1984 Hosting and OrangeWebsite. I think they all accept crypto payments (including Monero!) BitLaunch is a reseller for Linode and Vultr that allows you to pay with crypto, and hostingbydesign is a Hetzner reseller that doesn't require KYC.