SmartTube for Android? (sponsorblock + signed into YT)

Background: In my quest to migrate from iOS to Android, I’m searching for a way to watch YouTube on my phone, with SponsorBlock (no ads or sponsorship segments), while also signed into Google so that when I switch from android device to desktop computer or SmartTube on my TV, videos I’ve already watched are marked watched.

On my smart TV, the SmartTube app checks both boxes—incorporates SponsorBlock and enables me to sign into my Google account, with usability enhancements to boot. On my desktop computer, Firefox w/ SponsorBlock extension meets my needs just fine.

From digging around android forums, I gather there are several apps that incorporate SponsorBlock (e.g. various invidious/piped clients), but do not have the ability to log into Google. I understand the premise is to protect users’ privacy from Google, but in my case, I actually want to be signed in.

On my android device I’ve tried various Firefox forks with SponsorBlock extension (Fennec, Mull), but in all cases, the SponsorBlock extension does not pull any segments even though I know they exist (verified on another device).

Has anyone else gotten sponsorblock + signed into google working on an android device? If so, how? Thanks in advance!