I wouldn't hold my breath. Mainline hardware manufacturers have little incentive to support this.
e/OS is a well rounded, compromise alternative with much broader hardware support. I use it with an inexpensive Moto 5G Ace.
https://www.motorola.com/us/smartphones-motorola-one-5g-ace/...
It is currently shipping Chromium Browser/System WebView from December of 2022 with 265 known security issues: https://divestos.org/misc/ch-dates.txt
Users cannot change the system webview, Android only allows pre-included ones as it gets directly loaded into the process space of all apps using the WebView widget.
And it still makes many connections to Google and includes proprietary Google binaries and downloads more at runtime: https://divestos.org/misc/e.txt
Disclosure: DivestOS is my project.
I'm certainly not holding my breath on more GrapheneOS support, as so few people care. I'm not entirely sure it'd be the right fit for me anyway. I'm currently using a microg setup with lsposed so I can patch out some junk in modern apps (like Outlook trying to be device admin), and this kind of hooking is not something GrapheneOS is interested in (a feature request I opened a while back: https://github.com/GrapheneOS/os-issue-tracker/issues/284).