Hello @sylware, at this point, the answer to this is a no.
Libcef's sandbox is working for the majority of users. This is a case where hiding the fact that you're using a user-of-one distro can't be hidden and you need to figure out exactly why your system isn't letting the sandbox work as expected or continue to make the conscience decision to disable the security measure.
There's some previous investigation at https://github.com/ValveSoftware/steam-for-linux/issues/8373#issuecomment-1039339935 which might be worth pondering.
Why when I do a search into the issues I never get the pertinent and most relevant posts? jez...
Now I understand that disabling it is not the right way to do it, but as other some ppl also suggested, it is to dynamically detect the possibility to run the sandbox (unpriviledge namespace creation and maybe some more stuff) and have appropriate fallbacks.
I guess, I'll keep that disable switch until you are finished with the code.
I have the same problem, and the only thing I could find is to downgrade libcef.dll, which I cant do because of missing entry points. The application I wanted to run discontinued the support of disabling libcef sandbox. I guess I have to use an older version of my application... what a shame
cef sandbox is still crashing the steam client, please do disable it and that by default:
[19836.308639] CIPCServer::Thr[8949]: segfault at 57077 ip 00000000f7ad910a sp 00000000eeafd9b0 error 4 in libc-2.33.so[f7ac0000+119000]
[19836.308648] Code: 8c 0e 05 00 8b 1f 83 c4 10 0f b7 6e fe 89 44 24 0c 83 e8 02 89 44 24 08 85 db 75 0e eb cc 66 90 8b 5f 04 83 c7 04 85 db 74 c0 <66> 3b 2b 75 f1 83 ec 04 8d 43 02 ff 74 24 0c 56 50 e8 00 10 05 00
[20959.640689] traps: steamwebhelper[9845] trap invalid opcode ip:7f62fe31cb04 sp:7fff4eb1fda0 error:0 in libcef.so[7f62fba31000+776f000]
[20969.768325] traps: steamwebhelper[9912] trap invalid opcode ip:7f6b547ccb04 sp:7fff5d716060 error:0 in libcef.so[7f6b51ee1000+776f000]
[20979.973609] traps: steamwebhelper[9954] trap invalid opcode ip:7f5cbb116b04 sp:7ffedc10e620 error:0 in libcef.so[7f5cb882b000+776f000]
[20990.150250] traps: steamwebhelper[9992] trap invalid opcode ip:7fe06b294b04 sp:7ffe3391cc70 error:0 in libcef.so[7fe0689a9000+776f000]
[21000.298613] traps: steamwebhelper[10023] trap invalid opcode ip:7fe834147b04 sp:7ffe419e4990 error:0 in libcef.so[7fe83185c000+776f000]
[21010.489153] traps: steamwebhelper[10054] trap invalid opcode ip:7f48bc038b04 sp:7ffea7a87c40 error:0 in libcef.so[7f48b974d000+776f000]
[21020.617285] traps: steamwebhelper[10085] trap invalid opcode ip:7fc90eec7b04 sp:7ffcf07f02b0 error:0 in libcef.so[7fc90c5dc000+776f000]
[21030.765164] traps: steamwebhelper[10126] trap invalid opcode ip:7fef664f2b04 sp:7ffc1ca49390 error:0 in libcef.so[7fef63c07000+776f000]