That’s the way I learned it.
See page 107:
https://driving-tests.org/wp-content/uploads/2018/03/LA_Guide-2017.pdf
When I’m approaching an interchange in the right hand travel lane I’m in the habit of moving left if possible. If it’s safe to merge I’ll blink the merging traffic to let them know. If I can’t move left I’ll ease off and leave a gap if it’s practical to do so. If I’m exiting I’ll signal my intent a quarter mile away, blink the first car in the merge queue to go and drop In behind him.