=====Gaps=====
You can set desktop margins. Note that I put 40 on top, because I have my tint2 panel. You might want different setting.
<sxh bash; gutter: false>
  <margins>
    <top>40</top>
    <bottom>10</bottom>
    <left>10</left>
    <right>10</right>
  </margins>
</sxh>

=====LXqt Desktop=====
  apt install task-lxqt-desktop
  
=====Date and time=====