Food delivery services have become one popular way to get food without going out and waiting in a queue. There are two forms of such services: (1) platforms provided by the catering businesses (the brands’ websites or mobile applications) and (2) platforms provided by third parties acting as intermediaries (in the form of websites, or mobile applications, which is the focus of this studies). People in Thailand may find it easy to buy food from restaurants or stalls during the normal time. However, during the COVID-19 outbreak, the government is implementing movement restrictions to reduce the risks of infections. This left people with no choice but to rely more on the food delivery services, resulting in a rocket in the food delivery market values. The market attracts more players, which consequently leads to more complex challenges. When writing this paper, no players have been reported to gain the promisinghandsome profit. The challenges are intensified by the commission fee ceiling set by the government, while the food conveyers (partners/employees) strike for a raise in pay. It may be prudent for the enterprises to re-conduct in-depth consumer research before continuing in the cut-throat competition. This study begins by revisiting theories on consumer behaviours, three dominant pre-existing technology adoption models, and the current situations in Thailand. Moreover, the researcher provides suggestions for both business practitioners, as well as consumers to better understand the ongoing trends.