Backblaze B2 transactions, is this normal?

I am new to Restic, and I have just started using Backblaze B2. I’ve backed up 22.8GB (1870 files) so far. Here are my Class C transactions below. Is this expected? Doing the initial backup, I’m wondering why it’s used b2_list_file_names 198 times already? I’ve got no prior experience to know if this is completely normal, or too high. I’m backing up around 1.5TB, so keeping a close eye on the costs.

Class C (Charged): 402

Authorize Account
b2_authorize_account
36

Create Bucket
b2_create_bucket
3

Create Key
b2_create_key
2

List Buckets
b2_list_buckets
147

List File Names
b2_list_file_names
198

List File Versions
b2_list_file_versions
11

List Keys
b2_list_keys
5