Eh. Oregon's population is mostly centered in two counties which heavily trend democrat, so unless there's a totally unseen backlash to what's been going on, I seriously doubt it.
I looked into some data on the party registration numbers in Oregon and it does seem that republican registration is accelerating more than democrat registration in the period from
June to
August. In June there were 1,005,692 registered dems, 716,974 registered republicans, and 932,961 non-affiliated. In August there were 1,018,276 dems, 731,716 republicans, and 934,646 non-affiliated.
That's +12,584 dem, +14,742 republican, and +1685 non-affiliated.
I would hazard that's probably par for the course, though I don't really have the willpower to do a fuller investigation into registration trends.
And of course just because voter registration goes up or down, that doesn't tell us a whole lot about how non-affiliated and registered independents will vote. But if there were going to be a ridiculous swing away from democrats in November, you'd probably see some sign of that in changing voter registrations. You could probably play around more with various pieces of data for Oregon
(here) if you want to take into account turnout trends, voter registration outside this specific period in 2020, etc.