Until 1.18.2, I was notified by a chest mark when saving the world, but from 1.18.10. Nothing is displayed. I think it is a good guide, so please correct it.
MCPE-156574
Chest mark does not appear in the UI when saving the world From 1.18.10
Open
2
(Unassigned)
797542
Confirmed
Multiple
Windows
1.19.10.21 Preview, 1.19.10.20 Preview, 1.18.33 Hotfix, 1.18.32, 1.18.31
Retrieved
On second thought, this is true.