Bech32 or Native Segwit addresses (starting with bc1) are getting more popular and growing in numbers every day because of smaller size and cheaper fees for transactions.
you are thinking of "weight" not "size". SegWit transaction sizes can be bigger compared to legacy ones and specifically be a lot bigger when the nested SegWit is used instead of native ones. but since fees are calculated based on weight and SegWit transactions have lower weight in comparison, you end up paying less fee.Quote
Native Segwit adoption is on the rise
i'm curious if there is any data to support this, i thought it plateaued a while ago.Quote
and many wallets and exchanges are supporting it, but not all of them.
at this point any tools or services that don't support a useful feature that was added to the protocol 3.5 years ago should be considered insecure to use because it means they are either incompetent to upgrade their system even after all this time or they are malicious and don't want to upgrade. 