Tips for dining during Ramadan

Hello I will be visiting next week and heard traffic is horrendous during breaking fast time. If break fast is 6pm, could I eat at 5pm or will I have to wait to 8pm to avoid the crowds? We’re pretty flexible but just trying to avoid the traffic to and from places if we decide not to use public transport or unable to. The other option would be grab Bike. Does taking a bike help ease the pain of traffic jams or are they also usually standstill? 

Would cafes be open during brunch time? 

Would also love recommendation of matcha houses in Jakarta that only sell matcha drinks and foods. Thank you!