If I use uuidv4 right now, should switching the uuid generation function to uuidv7 some time in the future should give me the full benefit of using uuidv7, from

If I use uuidv4 right now, should switching the uuid generation function to uuidv7 some time in the future should give me the full benefit of using uuidv7, from that point in time onward (faster inserts)? As in, the index locality affects writes due to reducing page splits, but for reads, assuming IDs are being queried in random orders, uuidv4 vs v7 won't matter since neither of them would be able to take advantage of any locality?