There is no feature to do it like in Notion. But you can do stuff like this with html and css.
(I have no idea if this is the best way. This is just an example I know about.)
<div style="width: 100%;">
<div style="width: 50%; float: left;">This is column 1</div>
<div style="width: 50%; float: right;">this is column 2</div>
</div>
Or like here with CSS: Column layout v table - #2 by Craig
If you’d like some help with Advanced Tables, please post an example of what you tried to do.