WatchOS 7.4 can't be updated on Watch Series 3
I'm having issues with the WatchOS 7.4 update. Only 609 MB, it requires 3 GB to install. I managed to get free space to 2.5 GB, but then followed this and the result was a lot of time wasted and only 1.8 GB spare, so I still can't do the update, and I have to go through the whole unpairing process again to restore from the backup that's alleged to be on my phone..
Is there a better way here? My Mac has loads of free space and is on the local Wi-Fi, why can't the update be managed with access to that spare space, or some of my 50 GB iCloud allocation?
Apple Watch