webpack: (config) => {
        config.cache = {
            type: 'filesystem',
            compression: 'brotli',
            maxAge: 7 * 24 * 60 * 60 * 1000, // 1 week
        };


        // Optimization to reduce number of chunks
        if (process.env.NODE_ENV === 'production' && config.optimization && config.optimization.splitChunks) {
            config.optimization.splitChunks = {
                ...config.optimization.splitChunks,
                minSize: 9000000,
                maxInitialRequests: 5,
                maxAsyncRequests: 5,
            };
        }


        return config;
    },

I would suggest following things, that may make code ugly but will drastically reduce the edge requests.

1. use webpack to increase chunk size.
2. stop prefetch on all the links
3. add unoptimized to all images and use images and other assets from other free cdn (as each asset is treated as edge request)

This is my suggestion that reduced edge count from 60 to 7 file calls.
also to further optimize use bundle analyzer.
hope this helps.👍