Looking for a ‘fast’ endurance road bike, that can handle fine gravel and is upgradable

Canyon Ultimate CF SL 7
On sale for $2500 at this time:

https://www.canyon.com/en-us/road-bikes/race-bikes/ultimate/cf-sl/ultimate-cf-sl-7/3847.html

Or a 2024 Giant Defy 2 that j can get for the same price
https://www.giant-bicycles.com/us/defy-advanced-2

Like the 38 mm max wheels on the giant. The geometry is a little more aggressive.

Same group set – mechanical 105 (which I would upgrade in a few years).

Looking for a ‘fast’ endurance road bike, that can handle fine gravel and is upgradable