Xcode 12.0 (universal binaries version) freezes during workspace navigation

Xcode 12.0 (universal binaries version) is frozen most of the time. Looks fine while building, but any workspace navigation (e.g. open schema) takes a lot of time while Xcode stays frozen. Does anyone experience something like that?
What kind of hardware are you using? Also, can you take a spindump of Xcode while it appears to be frozen and file a Feedback? You can take a spindump from Activity Monitor by doing the following:
  1. Select the process (e.g. Xcode)

  2. From the View menu select "Run Spindump"

  3. Then attach the result to your Feedback.

Done — FB7770902.

Hardware: MacBook Pro (15-inch, 2017), 2,8 GHz Quad-Core Intel Core i7, 16 GB 2133 MHz LPDDR3, Intel HD Graphics 630 1536 MB.
Ok, it seems Xcode starts to hang after adding ~15 targets into a single scheme. More targets => longer hangs.
Thank you! Can you please attach a sysdiagnose or spindump of this hang to your feedback report?
Spindumps are already there.
Xcode 12.0 (universal binaries version) freezes during workspace navigation
 
 
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