I need your opinions

I have 2 warehouses and I am going to migrate from Odoo 15 to Odoo 16

I have a new partner telling me that I should use replenishments with replenishment rules to move products from WH1/Stock to WH2/Stock.

I do not use minimums and maximums, I buy and sell according to what I get and I distribute it equitably.

In Odoo 14 I moved the products between warehouses through internal transfers, but a new partner says that this affects accounting and you cannot see the entries and exits of the merchandise.

Can someone with experience tell me if it is wrong to use internal transfers to move products between warehouses?

Is internal transfer exclusively for WH1/Stock1 and WH1/Stock2?

Can't I use internal transfer for WH1/Stock and WH2/Stock?

I don't know what's behind the code that could affect accounting.

Sorry for the grammar I use in translation.