They did notify, long in advance. I tried sweeping my funds (~1Mṩ) to a new Muun wallet. I did have to leave some behind (~8Kṩ = ~$6 USD ) due to liquidity channel constraints or fees or something. Then, 9 days ago, I sent most of what was left (5022ṩ).

Now I do seem to have ~3500ṩ (95¢) stuck there.

I used BlueWallet as my only LN wallet for years. I don't begrudge them these sats. I still have some funds in my on chain wallet there, and I still use it as "watch only" for some other (hardware) wallets.

I use Blockstream Green for most mobile purposes. There recently added support for more types of watch-only wallets means I can shift my watchers from BlueWallet to Green.

But, what I've been holding out for, for years, is Green support for Greenlight (LN self custody for mobile/desktop wallets). That's supposed to be available any time now.