I've been using a degoogled phone for 5 years now. Virtually no problems with magisk installed. What are you suggesting?

Are you able to use banking apps, etc.? Genuinely curious.

Yes, I have over 200 apps on my phone, including a dozen financial apps. The only one that I haven't been able to get to work is the UPS app. It won't log in. So I just use the website.

I think it only supports Pixel and Google will make even that impossible soon

Hence why they are considering building their own phone

They're currently working with an OEM to provide support for another phone: https://grapheneos.social/@GrapheneOS/115103519926588491

I think I remember them saying the current target is 2026-2027 which is promising.