What I noticed, trust in government has so much to do with who is president. During Bill Clinton Democrats trust of government was in the 60's, Republicans dropped into the 40's. During G.W. Bush, democratic trust dropped from the 60's down into the 30's while Republican trust stayed around 80%. Enter Obama, Democratic trust in government rose as high as 74% while Republicans dropped into the 30's. Along comes Trump, Democrats drop down into the 20's, Republicans climb to as high as 71% while most of the time being in the 60's.
Independents has been on a steady decline regardless of who was/is president. From 68% in 2001 down to 28% in 2020. Gallup has no recent figures during Biden. Pew Research pretty much mirrors Gallup, but doesn't do independents. Pew however does carry it from 1 Dec 1958 through 11 Apr 2021.https://www.pewresearch.org/politics/2021/05/17/public-trust-in-government-1958-2021/
According to Pew, as of 11 only 24% of all Americans trust their government to who what's right most or all of the time.
It's an interesting graph, public trust in the 70's until 1964 than a decline to 26% in 1980, a slight rebound in Trust during Reagan and Bush I, then another decline during Bill Clinton's first term, then starting to rebound during his second and Bush II's first term/ Then another decline to around 24% where it's pretty much remained within a point or two either way from Bush II right to Biden on 11 Apr 2021.
Trust in government is always higher for the party that holds the presidency and lower for the party which doesn't. It's been that way ever since 1 Dec 1958 through today.