We cannot replicate any increased animation speed behaviours in MSFS 2024, and I don't recall seeing any other reports of it. The only thing I can think of that would affect the speed of the beacon lights and wipers is the sim rate.
We haven't tested the F28 in the SU4 Beta though, as officially we don't support any of our products on the MSFS Sim Update betas. The Sim Update betas are beta releases, so bugs are expected, and it would be a full-time job in itself to keep all our products fully compatible with each beta update.
If we can replicate this once SU4 has been fully released, we'll include any necessary fixes in the next F28 update.
Mark - Just Flight