Buying my first gravel bike

So I have been looking for a well maintained second hand bike, and I think I found a good deal, but I have no experience in bikes, so please would you help me out?

The price was originally 900€ and I managed to get it down to 850€. Should I go along with this deal or look a bit more for a better deal.

Description that came from the seller :
-Size L
-Date of purchase 23/2/2024 at cycle Gabriel by JF in Saint Gislain.
-Reason for sale: duplicate!
-New 1699 euros
-Selling price 900 Euros
-Features:
BSA Road Mega EXO bottom bracket
Crosshill gravel frame Supreme 5 Alloy Internal Routing
Cassette Sunrace CSMS0 10s 11–34T
Chain KMC X10 Siler/Grey 1/2"x11/128" W/ CL566R Link
Handlebar Lapierre alloy gravel bar, Width: 420mm (XS/S), 440mm (M), 460mm (L/XL), Flare: 16°
Rear DerailleurShimano Tiagra RD-R4700GS, 10s
Discs – RotorsShimano SM-RT30 160mm Centerlock
ForkLapierre Carbon Blades, Alloy Steerer, 12mm Thru Axle
BrakesShimano Tiagra Hydraulic Flatmount Rims Mavic W-91K steel cage CranksetFsa Omega Adventure Mega Exo 46/30T, 170 mm- co-branded saddle Wheel size700c Seat postLapierre Alloy Ø: 27.2mm L: 350mm O/S:12mm Brake typeHydraulic Disc Brak