The Figma Editor is just a large grey canvas in the center of the screen. This is where most of the design work happens. On the right-hand side, you see the Properties panel. For example, you can adjust the background color of the canvas there. On the left-hand side, there is the Layers panel. At the top, there is a menu.

Windows Keyboard Shortcuts

Below are just a few of many many. I got these few from usethekeyboard.com.

Selection

• Select an Element – Click
• Select Multiple Elements – Shift Click Click
• Select All – Ctrl+A
• Select Inverse – Ctrl+Shift+A
• Select None – Esc

Zoom

• Pan – Space + drag
• Zoom In – +
• Zoom Out – –
• Zoom to Fit – Shift + 1
• Zoom to Selection – Shift + 2

Cursor

• Measure to Selection (while pointing) – Alt
• Duplicate Selection (while moving/dragging) – Alt

Edit

• Copy – Ctrl + C
• Cut – Ctrl + X
• Paste – Ctrl + V
• Duplicate Selection in Place – Ctrl + D
• Rename Selection – Ctrl + R
• Copy Properties – Ctrl + Alt + C
• Paste Properties – Ctrl + Alt + V

Below there is a diagram of Figma, using the desktop app. I shrunk to a size less than the full-screen size to better fit in on this post.