I think it is likely the confirmation process will not go as quickly as some think. Senators in close races will weigh how a vote before the election will impact their chances at winning. If McConnell believes pushing a nomination through before November hurts the GOP's chances of keeping a majority in the Senate, he will delay. They want to look like they are doing their jobs right up to the point where it damages their personal ambitions.
All the handwringing and talk about the process can be helpful to Trump. If CNN and other news outlets spend the next four weeks worried about RBG's replacement, it is possible the big problem, Covid 19, drops a little in coverage. If the Democrats appear to be attacking a reasonable, qualified female nominee, this could backfire on them. I understand the concern about a judge's past rulings and how that may impact future Supreme Court decisions, but the President and party in power hold the votes, and there is nothing that can be done about that.
There was talk about the long-term impact of changing the filibuster rules for judicial nominees in 2013 and now we are seeing it. The vote in November will really have a say in how the court looks for the next generation. You figure Thomas and Breyer will be replaced during the next presidential term. If Trump wins election and the Senate stays with a GOP majority, the court could be a 7-2 conservative majority by 2024 with just one judge being over the age of 70. It is conceivable that Alito might also retire and Sotomayor has had some medical issues, so if Trump gets a second term, 5-7 supreme court justices could be his nominees by the time his presidency ends.
Elections have consequences.