ALL ABOUT SPOUSE VISA APPLICATION UK/PAKISTAN

Hi,

is there anyone that has recently applied for a spouse visa for the UK from Pakistan. There is a lot of information out there on older requirements, however there have been changes to the process. I was wondering whether anyone could help me and tell me
1. what documents I need
2. what order to submit
3. do we apply via visa4u or the gov website. what is the difference?

Thanks!

I am going to be applying for a spouse visa in the next few weeks for my partner to come from Pakistan so interested in the response to this.

Also for WhatsApp chat export and bank statements, do you have to print them out just to scan and upload to website or can they be uploaded direct?
And...screenshots of chat required as well as the export? Will be a lot of pages if so.