Not sure why it took so long for Mozilla to expose the setting on Android, it's been a 'secret' setting for a long time. In fact, sometimes they let features ride the rails for a little bit too long IMO.
For Waterfox for Android I exposed the setting by default and also added an addition DNS over Oblivious HTTP setting (DoOH) which uses Fastly as the relay (they host and control it, for privacy sanitisation) and Cloudflare as the resolver.
For Waterfox for Android I exposed the setting by default and also added an addition DNS over Oblivious HTTP setting (DoOH) which uses Fastly as the relay (they host and control it, for privacy sanitisation) and Cloudflare as the resolver.