@moh_kohn in my case I am typically on my phone using @ivory by @tapbots on the flagship @Mastodon instance. I have funded Mastodon gGmbH in the past and offered to help with fundraising/development on their Discord, to no avail. My assessment remains that @MastodonEngineering has its priorities askew.

The issue does not seem more common with Ivory (ugh, terrible name) than other clients. There were no results for this search on DuckDuckGo, for instance.
https://www.google.com/search?hl=en&q=%22ivory%22%20%22too%20many%20requests%22