PSA: @Mutiny Wallet PWA version does not work in lockdown mode as it disables webassembly. I had lockdown mode on for 4 weeks as I was kinda stress testing Mutiny to see if I’d lose my funds leaving it on so long. After turning lockdown mode off 1 month later, everything was fine. No errors, no forced channel closes etc.
Apple either tightened down lockdown mode or had some bugs in a recent version of iOS. Even adding an exception no longer works.