$249 walmart gravel bike is there a uk version similar at all?

Walmart own Asda - I think.

Check their websites perhaps?

If you're looking for a gravel bike on a low budget, I'd suggest a secondhand Boardman.

I paid £250 for an ADV 8.9, but it did need a fair bit spent to get it running well.

You might get one of the lower spec ones for £250 off FB marketplace or ebay.

I know it's not what you were asking, but the point is that they are good bikes full stop. Not just good for the price.

Schwinn Scree? https://www.evanscycles.com/brand/schwinn/scree-gravel-bike-911745

Walmart used to own Asda, but 2 brothers bought Walmart out about 4 year ago (I think)...

If you’re looking for a gravel bike on a low budget, I’d suggest a secondhand Boardman.

There's a lot of cheap gravel / hybrid / Pandemic purchases going second hand.

My Vagabond was £500, having been ridden for 35 miles in two years before I bought it...

Merlin Malt?

Halfords no

The $248 will be excluding sales tax so for a UK equivalent you'd need to add 20% VAT so it would be $297 but still a dirt cheap bargain.

Decathlon was my immediate thought, and they have some great stuff but nowhere near close to that

https://www.decathlon.co.uk/p/comfortable-light-carbon-fork-and-disc-brake-rc-120-road-bike-blue/_/R-p-308064?mc=8554265&c=silver%20grey

https://www.decathlon.co.uk/p/gravel-bike-grvl-120/_/R-p-312397?mc=8575940&c=moss%20green

This is the closest i can come up with. Over twice the price but looks good for the money

https://www.gooutdoors.co.uk/16245370/calibre-lost-lad-gravel-bike-16245370

£330, used.  Bit on new tape and cables, plus spare wheels (I had)