New high efficiency AC designed by morons
 

Antique cheap ACs have plastic guards that fit (snap) into the window tracks, 5 seconds done.

High efficiency inverter AC to be properly secured requires a useless metal bracket bolted into the center of the window sill.

To center I would have to drill insta crack plastic and bolt in every year, any movement and my sill would likely explode.

I guess no 8-12k btu inverter AC for me, it’s not reasonably possible to install without milling a custom block of wood at an angle that I would need to install and remove every year, or place blocks, don’t use the bracket and rely on the window to bear the weight, fail all around

Unfortunately most new tech has not been made retrofit-friendly...