Here is one frame I am looking at, just for normal gravel road riding but I´m quite heavy rider currently around 331 lbs (150 kg).
Need help looking for issues with this frame.
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I can see several problems with the frame for both the intended use of snow/sand and the proposed use of gravel.
Edit: Whilst not answering the question directly, I would add that suspension is likely not a good choice for a very heavy rider. Suspension components are usually designed around an 'average' ~80kg rider. I can tell from experience that they often don't work optimally for a very light rider (too stiff) and very likely have the opposite problem (too soft) for a very heavy rider. With the desired use being for gravel riding i'd look for a simple well made rigid frame with high volume tyres.
Just because the bike looks beefy doesn't mean that it is.
Try and find a "maximum load rating" from the manufacturer - if it exists. Many of the fancy race bikes have a max load of 70 or 80 kilos.
The extreme-look suspension is way overkill. For a heavy rider you're better off with no suspension, which is known as a rigid bike, or just front suspension, also called a hard-tail.
Good luck with your searching - its not easy.