Can this 'liquid plastic' fix anything?

Can this internet-famous gadget fix anything? We tried it to find out.

You can repair so many things with this $10 plastic welding gadget

Super Glue Liquid Professional Clear Superglue For - Temu

5 Second Fix Liquid-Plastic Welding Tool - 02276 - Supersavings

UV Light Pen Glass Repair Tool Liquid Plastic Welding - China UV

Can this 'liquid plastic' fix anything?

Liquid Plastic Adhesive Kit – FlashFix

VISBELLA 5 Second Fix UV Light Pen Glue Super Powered Liquid

5 Second Fix UV Light Repair Tool With Glue Super Powered Liquid

4 Simple Ways to Repair Cracks in Plastic - wikiHow

LED UV #1 Liquid Plastic Welder With Bonus Refill Twin Pack

Bondic Liquid Plastic Welder w/LED Light & Cartridge Starter Kit

Bondic LED UV Liquid Plastic Welding Pro Kit

5 Second Liquid Plastic Welding Kit Portable Black Plastic Super

5 SECOND FIX LIQUID-PLASTIC WELDING TOOL – buymeright