It would be best to electronically file, since you do not want to hold back the stimulus check.
The IRS announced April 14, 2020 that they are not processing any more paper filed returns until the stimulus checks have been issued. See IRS urges taxpayers to use electronic options; outlines online assistance.
Visit the following links for the most recent updates:
IRS: Economic Impact Payment Information Center
IRS Coronavirus Tax Relief
TurboTax Corona Virus Tax Center Updates