The "No affiliations" here in PA have grown as well and the sucky media keep emphasizing how Democrats are "losing voters", where the difference in registrations between (D)s and (R)s is down to about 300,000 (in favor of (D)s).
(below from here (PDF) - https://www.pa.gov/content/dam/copapwp-pagov/en/dos/resources/voting-and-elections/voting-and-election-statistics/voter-registration-statistics/2024%20Election%20Nov..pdf)
(D) - 3,998,602
(R) - 3,712,319
(L) - 47,316
(O) - 1,416,896
(TOTAL) - 9,175,133
The unaffiliated/other parties (including Libertarians) here are about 17% and the major parties are about 44% each, and both major parties are losing voters who are opting to register unaffiliated. But then by doing that, they can't participate in a primary (we don't have open primaries).
We finally managed to get a majority (D) State Supreme Court and along with keeping a (D) governor more than 2 terms in a row, they were able to start breaking up both the state legislative AND federal legislative gerrymandering!