Can you use an ax5700 router with an ax6000 or other satellite-RBK842-1CCNAS Orbi AX5700 WiFi System

I have about 3,300 sq. ft. and the units are the correct distance apart, but the problem is that we have multiple people doing zoom at the same time, uploading data to 4-5 dozen students simultaneously. I was hoping that getting another satellite to connect my computer to through an ethernet connection would prevent signal instability and increase my upload speeds to accommodate my students; it's not because I dont have good wifi signal strength, but due to having a lot of people I'm streaming to.