This didn't feel right so I went and tested.

    process.on("uncaughException", (e) => {
        console.log("uncaughException", e);
    });

    try {
        const r = await Promise.all([
            Promise.reject(new Error('1')),
            new Promise((resolve, reject) => {
                setTimeout(() => reject(new Error('2'), 1000));
            }),
        ]);

        console.log("r", r);
    } catch (e) {
        console.log("catch", e);
    }

    setTimeout(() => {
        console.log("setTimeout");
    }, 2000);

Produces:

    alvaro@DESKTOP ~/Projects/tests
    $ node -v
    v22.12.0

    alvaro@DESKTOP ~/Projects/tests
    $ node index.js 
    catch Error: 1
        at file:///C:/Users/kaoD/Projects/tests/index.js:7:22
        at ModuleJob.run (node:internal/modules/esm/module_job:271:25)
        at async onImport.tracePromise.__proto__ (node:internal/modules/esm/loader:547:26)
        at async asyncRunEntryPointWithESMLoader (node:internal/modules/run_main:116:5)
    setTimeout

So, nope. The promises are just ignored.

    const p1 = makeP1();
    const p2 = makeP2();

    return await Promise.all([p1, p2]);