The linked article in the post especially specifies that it doesn't work well at all and has it's own limitations and recommends using pattern + type=number tog

The linked article in the post especially specifies that it doesn't work well at all and has it's own limitations and recommends using pattern + type=number together and then adds like a ton of workarounds on top of that. The pattern trick article basically explains the exact opposite of what the "you don't need input type number" article says but is cited for something it does not say at all.