The description of your Ali diodes is:
5 Values* 20pcs=100PCS Bright 3528 1210 SMD LED Kit Red/Green/Blue/Yellow/White 20pcs Each LED Diode 22.214.171.124mm
And without a real datasheet, that’s all you can look at.
The Footprint name text is also not fully visible in your screenshot. I assume it is:
That footprint is made for a LED which is 3.2mm long and 2.5mm wide (The 3225Metric text), while the Ali LEDS are 3.5 * 2.8mm. So the footprint you selected is a bit too small for these LED’s.
I had a look at other available footprints in KiCad’s default LED_SMT library, and none seem to fit these Ali LED’s. So you can either select a different size of LED, or do as BobZ recommends and make your own Footprint, or modify an existing one. Having the Pads a big on the largish side is also indeed easier for hand soldering (which is why the “Handsoldering” footprints have big pads).