A resounding election win for Singapore's perennial rulers has been tainted by concerns about a generational voter shift that could in time weaken the People's Action Party's (PAP) unyielding grip on power.

The PAP won all but ten of 93 seats in parliament and 61 percent of the popular vote — a landslide by international standards — but its share of the vote dropped nine points from the last election in 2015.

Surveys released this week said a youth backlash was reinforced by disaffection from middle-aged voters, who were not expected to rock the boat given the dire economic outlook and job uncertainty caused by the COVID-19 pandemic.