taproot doesnt help scale bitcoin.
what it does is for those that produce bloaty transactions and even more so multisig transactions they can opt to put their value into a new multisig that can the reduce the 'weight' of the transaction.. thus may reduce some bloat.
Using OP_CHECKMULTISIG(VERIFY) is not "bloat" it is a normal and a very common usage that has existed from the day bitcoin was created and a large number of bitcoin users are using this OP code specially some of the services that make a lot of transactions.
With them switching to new OP code their transaction size and weight will
both be reduced significantly.