That really depends on the candidate.
And it depends on the main candidates as well. What we have now is "strong" words against genocide while continuing, or fascist genocide. The third party candidate (RFKJr) is an anti-vax, conspiracy theorist, covid-19 denying, whacko with name recognition for a while host of democrats, and was one until. He's a spoiler candidate. Voting 3rd party in this election is, imo, dangerous.
Pretty quick.
My kids are currently 5 and 2 had my vasectomy about 6 months after the second (wanted sooner but no appointments available, and it's first consult then another appointment).
Toughest thing for me was the second day. Day of I was given Valium, procedure was easy peasy. I'd call it a few days of discomfort, just plan to take it easy.