It’s not really a thing, though some states have non-partisan redistricting commissions.
In the US, elections are constitutionally run by the state, not the federal government. Functionally the Secretary of State for each state runs the elections, which are really run by county election boards.
Keep in mind that in the US elections happen on predetermined cycles, they are not typically “called” like in a parliamentary system. Every representative, senator, governor, and president knows when their term is up, when elections happen, and what the state timlines are for each one.
In MO, my understanding is that the USSC simply remanded the ruling back to the MI Surpreme Court who had already ruled the new map can’t be used. The issue really stems from that new map having been used in primaries to determine the candidates, so who appears on a ballot in a location whose district has changed between then and now?
So it is very dependent on your location with the exception of Federal jury duty which is pretty consistent. If you are out of state for school you can get an automatic exemption for that since I was selected in college once and didn’t need to show up.
I was called for county civil court a couple years ago. You get a letter with a phone number to call the night before to see if you need to show up. If you do then you park downtown/take the bus/etc and bring your letter (and usually a book or something else to do for the day). You sit in a large room with about 50-100 people where you get checked in by a clerk where you get a number (usually alphabetical by last name) . A judge comes in around 9am and tells everyone how important it is, thanks you for showing up and explains the process. We did have a handful of folks show up late due to issues with the light rail that morning which were allowed. The list of no shows was provided to the sheriff to issue fines after a certain point.
We then got a paper questionnaire to complete to help speed up voir dire and handed them in to the clerk, each had our juror selection number on it. Then you wait. The room had a small breakroom like area connected to it with tables, vending machines, and water fountains as well as restrooms for potential jurors to use throughout the day. We weren’t allowed to leave the room at all during this time.
After the attorneys finished reviewing papers we were called in groups of about 20 to walk to the courtroom for interviews. We were verbally asked at that point if there was a reason we could not serve for the case which was expected to take less than a week. Reasons were written down but no excuses were given at this point.
After the interview you went back and waited. At lunch you were permitted to leave for an hour and had to check in when you returned. Around 3pm they called numbers of who was selected and 2 alternates (I was the second alternate). Everyone else was dismissed and we were walked back to the courtroom to talk with the judge. He told us when to show up the following day and again thanked us for serving.
The pay for my state is only milage travelled and for the selection day and 3 days of trial was something like $25 total which didn’t even cover parking for me. It’s set by the state and there hasn’t been a push to update it. The judge did order lunch for all the jurors during the deliberation time (which was about an hour, I think so everyone could eat, I wasn’t in the deliberation room as an alternate but it was a really clear case).
We were told not to talk about the trial to anyone while it was ongoing. Even family or friends less it influence our judgement. Afterwards we were told it was up to us if we discussed it with anyone, we didn’t have to but were allowed. The attorneys both asked for some feedback on how they did which I provided to hopefully help them get better.