Linux Ubuntu - Its so buggy, Windows 10 feels like heaven

Dunno why, its not like i always have bad luck with tech stuff....

my Sony Vaio tap 11 has been installed with Ubuntu Linux and

• mouse left click randomly not working, usually after the screen goes blank (googled, and people already had it since 2004)
  
• unable to create wifi to wifi hotspot (so many tutorial on the net, tried a bunch of them, nothing can do it)
  
• unable to use some GNOME extensions
  
• firefox randomly have weird double windowing (the main window itself is fullscreen but the web page only using a quarter of the scren)
• touch screen keyboard randomly wont auto popup/hide

i want to use my windows 10 back, but my office's ISP banned my MAC address (with no explanation given) and windows 10 wont let me change the mac address

yes the proper way is to unban the MAC, i have reported to higher ups, but they dont "get it".

 

for some reason the router WiFi refuse to use some mac address. it will automatically add 2 to the second digit.

so

A2:E8xxx become A4:E8x.....


but for sme others it works just fine.