On iOS I occasionally go through periods of time where sync can get a bit sketchy for me despite not getting the little rotating circle thing next to the space name or the red box in the bottom left.
Hoping there might be a place to check to confirm changes are synced to the server especially during times I’m doing a lot of changes and updates at once.
How do you realize you’re not in sync if you’re not seeing those indicators? Do you check with another device?
The next day when I go back to the space everything is gone… occasionally I’ll see cards and tags that are cut off too. So [[2022]] shows up as [[202]] or other issues like that. But it’s the bigger stuff where it seems like an entire session is wiped that I’m more worried about.
For example: last night I added ~10 cards to the below space, added 
to ten existing cards, and reordered everything. This morning when I went into it, only two of the ten new cards were there, both in the upper left corner (not where I placed them), one of which was cut off (the last couple characters missing), and all of the positioning of the existing cards reverted back and none of the were there.