Can't show outline in right sidebar on Android phone

What I’m trying to do

I am going to use the rightside bar to show the outline of the current note. The Obsidian version is 1.10.5 (256) for Android. On my Android tablet, the outline shows normally in the rightside bar. But on my Android phone, when I open a note in the same vault, swipe down to show the command palette, and input “Open outline of the current file,” the outline is shown in a new tab instead of in the rightside bar. Is there any method to do this, so that I can just swipe from right to left to see the outline and locate in the note? Thx

Things I have tried

See above

Use the command Outline: Show outline

Thanks!

PS: If a tab of outline is opened, the command Outline: Show outline will simply be a switch to the outline tab. But if the outline tab is closed and execute this command again, the outline will show in the rightside bar.