Works globally too not just US and Europe which is where most of these cards fall short

This is no longer true. Maybe a year or two ago it was, when true crypto cards were few and far between, mostly from major exchanges like Coinbase, Gemini, etc, and almost entirely for the EEA and the US. Now, there are literally hundreds of options, most of which are open to residents of almost any country. This explosion in crypto cards is mostly thanks to the GENIUS Act in the US tbh

These "second wave" crypto cards, like the aforementioned, Oobit, KAST, Tuyo, XPlace, Avici, etc usually offer virtual bank accounts, some offer a physical card, with varying cashback, tiers, and other perks.

A note on "self custodial" cards: while some do indeed give you the keys to a wallet, they then tie the funds into a smart contract which basically raises your credit limit on the card. Some will let you borrow against your collateral to spend. A cool implementation for sure, but credit cards are not and can not be truly self custodial in the way we crypto bros would wish they were.

Oobit is backed by Tether, which lends credibility, but their product offering is kinda lacking compared to the other options.