What have you gained?
An explicit type
Personally I heavily rely on the middle click to paste, especially with my docker workflows. Rather than having to click "CTRL+SHIFT+C" then "CTRL+SHIFT+V" every time, I just know whatever is highlighted will get pasted when I hit the middle click button. It's a subtle difference that saves maybe 1-2 seconds but combine that over the course of months and all of a sudden I've saved myself an hour with more efficient copy/paste.
UUIDv7 has 62 bits of random data, ULID uses 80 bits, so if anything ULID is "stronger" (meaning less chances of generating the same id within the same millisecond)