How does one apply pressure to Proton?

I’m deGoolging. Many of us are deGoogling. I’m trying to choose Proton. Seems like a solid Mail provider…. Relys on google play services for push notifications… Unified Push is just laying right there like a poor abused neglected puppy… So Id like to apply some pressure to the developers to let them know that there customer base is danm near demanding this at this point. I’m not looking to spam them, I’m looking for a public location we can center some attention on that they are gonna see us pushing from. #UnifiedProton?