I have matterbridge set-up on a private chatroom with few people between IRC, Discord and Matrix, because some of the ones I chat with don’t really care much about these issues, and are not moving. On matterbridge the delay is significant in some cases and I encounter a few bugs as well. Plus, by having a Discord chatroom in the first place, most people are probably not going to join the other side. We shouldn’t even promote Discord usage.
Pixels get verified boot and bootloader relocking for custom roms like grapheneos as well, so you can be sure your device isn’t compromised even with a privacy respecting custom rom. I guess this is what most people refer to… Oh, and Pixels are probably going to get security patches for the kernel as well as the vendor blobs unlike many other vendors…