I would like to pin (fix) the opened attribute table to the QGIS window or display the table on top. The attribute table is opening as another window (and it is possible to open the same attribute table as new window many times- it is unusable). I cannot work with the map content and at the same time see the attribute table Is there any solution?
You can set the Attribute Table to be in a dock window which allows you to 'fix' to certain positions.
You can set this by going to:
Settings > Options > Data Sources > Open attribute table in a dock window
You will need to restart QGIS for this to take effect:
Now when you access the Attribute Table, it may appear at the bottom. Just drag this towards the top:
And it should be 'fixed':