Pay attention to longer riding range and thus, more battery capacity and motor power. You will also need more speed options, wider tires, and larger wheels, which will help to attack various terrain. A comfortable seat and a one-piece frame are a necessity.
Quickly take off extra moist with a towel, drink cool water as you stop, cool down by using a small desk fan. Take a shower and change clothing if facilities allow. Have a sealed plastic bag ready and an emergency kit with you. Build a routine that works for you and make it a habit.
Make every effort to ride at a steady pace, do not speed up. Maintain your pedaling effort just below your sweat level. Choose flat routes and drink plenty of water as you ride. Use a rear rack, not a backpack. An upright riding position is preferred to a sporty position. Cooldown fast when you arrive.
Judge fairly state of your fitness. Build in advance and know well your commuting route. Choose flat roads, try to stick to shades and leave for your commute earlier in the morning. Dress for weather and dress in layers, so that you can peel off as you warm up. Drink a good glass of water before you take off.
Choose e-bikes with a high handlebar, small or medium size of wheels and a detachable battery. Consider an e-bike with a foldable frame, install a rear rack or a basket for luggage. Install mudguards and chain guards. Always try a model that you want to buy.
Choose an e-bike with a high handlebar and an upright seating position. Consider models with small or medium size wheels for easy maneuvering in traffic. Make sure the seat is comfortable and battery life is sufficient. It is useful to have a basket or a rear rack installed to help carry a sack or a backpack.