I’m abroad and I have a portable WIFI which on my note 9 is set as metered. I was surprised that my note automatically downloaded firmware update over metered connection!!! On unbranded firmware I get choice to download now or later but Verizon modified Note 9 firmware does not obey metered connection which costed me $$$. This should be fixed because the vanilla firmware does not do that, but Verizon modified firmware can cost you $$$ on metered WIFI.
I only use my Verizon note 9 with WIFI for WIFI calling abroad.
I hope Verizon will fix their firmware.