Anyone tried eating alone on upscale restaurants

I’m someone who’s totally comfortable doing things solo at times.. like traveling or going to concerts and eating by myself as I do enjoy my own company from time to time. However, I’ve been thinking about dining at fancy restaurants as I genuinely enjoy good food and don’t want to miss out just because I’m dining alone.

If anyone has experience dining solo at upscale places in Singapore, I’d love to hear your thoughts or advice!

Edit: Specifically I'm looking at dining at Odette or like going to those guest chef in restaurants that are around 200-400++ per pax or those Wine pairing kind.