I had the same crash as OP:

Code
Application: CefSharp.BrowserSubprocess.exe
CoreCLR Version: 6.0.1122.52304
.NET Version: 6.0.11
Description: The process was terminated due to an unhandled exception.
Exception Info: exception code e0000008, exception address 00007FFD23C3CF19

I checked this path:
D:\Program Files\SteamLibrary\steamapps\common\Baldurs Gate 3\Launcher

And found a debug.log file there that had this message:

Code
[0906/110749.828:WARNING:chrome_browser_cloud_management_controller.cc(87)] Could not create policy manager as CBCM is not enabled.
[0906/110750.758:INFO:CONSOLE(4)] "Init gamepad lib...", source: https://launcher.larian.com/gamecontroller.min.js (4)
[0906/110750.849:INFO:CONSOLE(1)] "GET ARCHITECTURE", source: https://launcher.larian.com/js/app.a4d69ec0.js (1)
[0906/110750.849:INFO:CONSOLE(1)] "set game from STORE bg3", source: https://launcher.larian.com/js/app.a4d69ec0.js (1)
[0906/110750.849:INFO:CONSOLE(1)] "IVOKE updateAreModsInstalled function () { [native code] }", source: https://launcher.larian.com/js/app.a4d69ec0.js (1)
[0906/110750.851:INFO:CONSOLE(1)] "Init vue gamepad...", source: https://launcher.larian.com/js/app.a4d69ec0.js (1)
[0906/110750.851:INFO:CONSOLE(1)] "Attaching pad events...", source: https://launcher.larian.com/js/app.a4d69ec0.js (1)
[0906/110750.965:INFO:CONSOLE(1)] "setLaunchableGame bg3", source: https://launcher.larian.com/js/app.a4d69ec0.js (1)
[0906/110750.969:INFO:CONSOLE(1)] "Uncaught (in promise) TypeError: launcher.webpageReady is not a function", source: https://launcher.larian.com/js/app.a4d69ec0.js (1)
[0906/110750.992:INFO:CONSOLE(1)] "Entering webview... none", source: https://launcher.larian.com/js/app.a4d69ec0.js (1)
[0906/110750.993:INFO:CONSOLE(1)] "setLanguage en", source: https://launcher.larian.com/js/app.a4d69ec0.js (1)
[0906/110750.993:INFO:CONSOLE(1)] "rendering engine from native:  dx11", source: https://launcher.larian.com/js/app.a4d69ec0.js (1)
[0906/110750.994:INFO:CONSOLE(1)] "areModsInstalled false", source: https://launcher.larian.com/js/app.a4d69ec0.js (1)
[0906/110751.008:INFO:CONSOLE(1)] "CefSharp platform (PLAT, GAMEID, TOK):  steam 1086940 FAAAALf9uznBGUuuaxinBAEAEAG+kPhkGAAAAAEAAAACAAAAMsHabJTRHuTmf1YNLAAAALIAAAAyAAAABAAAAGsYpwQBABAB3JUQAN7I4WIBOKjAAAAAAFA18WTQ5AxlAQAT2Q0AAAAAAJHpKkaOM0RGVKjRjAgzxm47i9F05BTWoStx078PiFp+wINFqzBLACqVUX9ifvrRTuWbV3uPk6k16MPypRacWY8YXAYHHQErJb/BQ7RgZ8EWGdORjcsk0azP0LMLS7LRkLs5msdUsX6u64aE00JJjfRGp1TUD0zSWvIADMj+tFhs", source: https://launcher.larian.com/js/app.a4d69ec0.js (1)
[0906/110754.842:INFO:CONSOLE(1)] "run game with param - dx11", source: https://launcher.larian.com/js/app.a4d69ec0.js (1)
[0906/110934.409:INFO:CONSOLE(1)] "Entering webview... none", source: https://launcher.larian.com/js/app.a4d69ec0.js (1)
[0906/110934.445:ERROR:angle_platform_impl.cc(43)] Display.cpp:1023 (initialize): ANGLE Display::initialize error 0: Internal Vulkan error (-1): A host memory allocation has failed, in ..\..\third_party\angle\src\libANGLE\renderer\vulkan\RendererVk.cpp, initialize:1718.
[0906/110934.447:ERROR:gl_display.cc(520)] EGL Driver message (Critical) eglInitialize: Internal Vulkan error (-1): A host memory allocation has failed, in ..\..\third_party\angle\src\libANGLE\renderer\vulkan\RendererVk.cpp, initialize:1718.
[0906/110934.447:ERROR:gl_display.cc(790)] eglInitialize SwANGLE failed with error EGL_NOT_INITIALIZED
[0906/110934.448:ERROR:gl_display.cc(824)] Initialization of all EGL display types failed.
[0906/110934.448:ERROR:gl_initializer_win.cc(134)] GLDisplayEGL::Initialize failed.
[0906/110934.451:ERROR:angle_platform_impl.cc(43)] Display.cpp:1023 (initialize): ANGLE Display::initialize error 0: Internal Vulkan error (-1): A host memory allocation has failed, in ..\..\third_party\angle\src\libANGLE\renderer\vulkan\RendererVk.cpp, initialize:1630.
[0906/110934.451:ERROR:gl_display.cc(520)] EGL Driver message (Critical) eglInitialize: Internal Vulkan error (-1): A host memory allocation has failed, in ..\..\third_party\angle\src\libANGLE\renderer\vulkan\RendererVk.cpp, initialize:1630.
[0906/110934.451:ERROR:gl_display.cc(790)] eglInitialize SwANGLE failed with error EGL_NOT_INITIALIZED
[0906/110934.451:ERROR:gl_display.cc(824)] Initialization of all EGL display types failed.
[0906/110934.451:ERROR:gl_initializer_win.cc(134)] GLDisplayEGL::Initialize failed.
[0906/110934.453:ERROR:viz_main_impl.cc(186)] Exiting GPU process due to errors during initialization

That made me think that it was too much stuff opened. (which is weird, because my PC has 32GB of ram, but maybe it's video memory that it's using here). I closed a bunch of stuff, and was able to load my game and play again. Hopefully this helps!