Browser pdf viewer -- use of arrow key jumps to top of the file -- how to return to previous position in it?

[TryerGit]

Hello,

I view an error free built typeset pdf in the LW provided web browser view. From within the .tex file, suppose I SyncteX from cursor, the correct position in the browser is highlighted, with the focus continuing to be in the .tex file within VSCode. So far, so good.

Now, on Alt Tabbing to the browser without explicitly clicking the mouse into the browser's pdf display, pressing the up down arrow key on the keyboard immediately takes one to the first page top of the built pdf file.

Is it possible to go back to the previous SyncteX'ed from cursor location within the pdf file?

I am on a rather old version of LW (8.21.1) and VSCode (1.60).

Thank you.

ETA: Similar previous questions / discussions are here:

https://github.com/James-Yu/LaTeX-Workshop/issues?q=jump+to+previous+position

However, these seem to be for the VSCode Tabbed pdf viewer and I am not sure if that applies to the web browser view.