Is it possible to view charts in 4 x 1 layout?

The default layout for 4 charts is 2 x 2 layout, i.e 2 rows and 2 columns. Is it possible to change it in any other layout like 4 rows and 1 column, i.e displaying 4 charts vertically?

Not possible currently.

The Vivaldi browser allows you to adjust tabs as per rows and columns.
You can use that
You can open charts in 4 tabs and then use tile features