Short answer. Unzip, step or peel as the cut allows, and do not make it a reason to avoid a one-piece if you otherwise love it. Zip-front is faster than a pullover coverall.
Zip-front is the point
The Zip-Front Jumpsuit exists because pullover one-pieces are a negotiation every time. A zipper is a door.
Practice once at home
Not as a joke — as muscle memory. Then it is just clothing.
Shop medical scrubs at Yireh
The Classic V-Neck set ($86), The Zip-Front Jumpsuit ($98), and The Fashion Flare set ($86) are built as medical scrubs — nine colors, real pockets, a cut you will still wear at hour ten. If two-piece is simpler for you, The Classic is the set.
