I've had issues with Ventoy on multiple computers with multiple isos. +1 for convenience, -1 for not working 3/4 of the time (for me, I'm sure there are numerous factors).
Your machine is UEFI, which means your usb stick must be formatted in gpt. Ventoy defaults to mbr which means lagacy bios. It is just 3 mouse click setup.
Try again. Because it is the best method. I just updated 2,5 years old Ventoy stick without any issues without re-formatting.
To be fair, I seem to have a not-so-super superpower to blind pick the USB devices that have the least support for Linux stuff (the aforementioned drives, a WiFi module, etc.).
Hahahaha, sorry to hear (but I empathize). I can be a cheap bastard, so I have some shitty thumb drives around. I figure they eventually die anyway, so this stuff isn't permanent.
I keep a folder on my server with the tools and noted to rebuild each one. Sometimes I even make an image with the tools, and only leave the ISOs out.
I maintain older hardware at work. We have a platform based on a Biostar motherboard with no USB3 ports, and it will not boot from any USB3 drive I've tried. Any USB2 drives work fine. Picky, picky! 🤷