Do we need submit SOP for CSU master applications?

I filled all application of California state university, and still I didn;t see any option or field to put my SOP, any

Do Professional LOR’s require any stamp from the company?

Do we need to get the lor sealed / stamped or is it not required and can we submit a pdf?

TOEFL AND GRE SCORES NOT REACHING UNIVERSITIES

Hi, I have sent my Toefl and GRE scores to the universities at the beginning of November. And they have not yet reached

University suggestions for MSCS Fall 2022

Gre: 330 ( 170 quant, 160 verbal, 3 awa) Cgpa: 7 Ielts : 7 Work experience: 10 months as software developer in infosys