Since Taler isn’t operating in the same way as the wild-west of crypto, and needs to secure the adoption of existing banking institutions, its rollout is going to be much slower.
It hasn’t been widely adopted yet, but the big change that occured is it only just recently released a stable 1.0 version that makes wider adoption possible, and passed some essential security audits, including for iOS.
In addition to recently being approved and available in Switzerland, it is also planned to be added to a Ko-fi-like payment/donation system thanks to a grant by the NLnet foundation, which will hopefully enable it to gain wider adoption by creators or youtubers, as an example. In the future, it could become a replacement for Zelle if more banks adopt it (I suspect credit unions would be more likely to give it a try, if they became aware of it by their membership, and it was requested a lot).
There’s a bit more discussion of it over at !money@slrpnk.net, if you’re interested.
It likely does have more representation and mind-share here on lemmy since it aligns with the ideals of many users here in particular, we’re going to be more tuned into alternatives like that compared to the wider population.
It likely wasn’t federated to lemmy.zip. Try subscribing to it and then reloading it a few times. Otherwise you can go to it directly from https://slrpnk.net/c/money to see what should be showing up once it’s federated.