As Google Chrome disables uBlock Origin and other unsupported extensions, rivals like Brave and now Opera have confirmed they will support it. The latter has explained how it hopes to do so.
No, they've definitely been Chinese last time I've checked. It's just that it seems a bit weird to me to distrust software just because it's Chinese, since foss stuff from china can be trusted as it's possible to audit it (say, shadowsocks or xray), and proprietary software from outside of china can send your data wherever it's programmed to (e.g. windows or chrome). Besides, while it's alleged China could influence Chinese developers to either hand over userdata or backdoor the software, it's not like other governments can't, and for an average Joe the consequences are, I suspect, more or less the same