Sauce for those in doubt
https://twitter.com/realDonaldTrump/status/1027641518243414016
No, in my experience notifications only work on tweets (even though this was technically a tweet, it was categorized as a reply, presumably because it had a link to LG's handle as the first thing).
I'm guessing this is why so many people put a period in front of their tweets, to prevent twitter from treating it as a reply and suppressing notifications.
>11/11
Now 11/10
https://www.businessinsider.com/trump-is-getting-his-military-parade-a-day-early-but-without-tanks-2018-7