I currently have this flow which works well in normal values. But for SP list column with multi-select choices, the cell only shows one selection.

Excel:

In SP List:

I'm trying out the video from @abm (https://www.youtube.com/watch?v=OXEcLqDvCrc) but I'm stuck after Compose.

not sure which of the dynamic to choose from -

I tried this, then I don't know what to do anymore.

@grantjenkins thanks for noticing my comment