I'd get the Switching.
Else the switching.
Or at a pinch, the switching....
For small loads, linear is ok.
For big or otherwise, switching is preferred for efficiency, and often size.
Problem with switching is expense.
But those Mean Well switchers seem to be a very good price, and from what I hear, they are good & reliable.
Since the prices are so close in this case, switcher definitely.
Even at greater price differential, 100W of more of heat is a lot of heat; and wasted load (ie, equivalent to a pair of headlights...).
Just one thing - do NOT parallel PSUs - ie, don't connect two 10A linear OR switchers together to get 20A; keep them separate else buy the right size....