I mean, besides an extremely contingent of cringy liberals (not a liberal btw), more liberals accepted the results of the election then compared to republicans now.
Furthermore, Hillary Clinton conceded the day after Trump's victory was announced, Obama immediately facilitated a peaceful transition of power that was praised by Trump himself, other democratic leaders acknowledged Trump's victory, and the liberal media immediately accepted the results of the election.
In 2020, Trump has yet to concede and only recently allowed Biden's transition team to do their thing while filing a bevy of piss poor lawsuits, a vast majority of braindead Republicans actually unironically believe the election was stolen, all of conservative media besides fox have ran along with the voter fraud conspiracy, and many congressional Republicans were reticent if not unwilling to accept the results of the election.
These are not remotely similar scenarios. But keep vaguely posturing at (largely) imagined hypocrisy to deflect from the fact that you're coping.
https://fivethirtyeight.com/features/more-republicans-distrust-this-years-election-results-than-democrats-after-2016/