Just saw this and tbh you might want to look at the Satechi Slim X1 Bluetooth Backlit Keyboard. It has an aluminum chassis so its way tougher than those folding ones. The keys use scissor switches which feel snappy and precise compared to mushy silicone.

• 11.14 x 4.49 inches
• Type-C charging
• Multi-device pairing Make sure to watch the backlight settings tho, it can kill the battery fast if you arent careful...

I totally get the struggle with mushy keys. If you want tactile feedback without the bulk, you should check out the Logitech K380 Multi-Device Bluetooth Keyboard. It uses scissor switches which give a much more distinct click than that membrane style on the Keys-to-Go. It weighs about 423g so it's light enough for a bag but solid enough that it wont flex when you type. It supports Bluetooth 3.0 and pairs with three devices almost instantly via the Easy-Switch buttons. Honestly, it's basically the gold standard for portable iPad setups under $50. Another solid choice if you want something even slimmer is the Arteck HB030B Slim Portable Wireless Bluetooth Keyboard. It's only about 0.24 inches thick and features a stainless steel back for rigidity. The keys are surprisingly snappy for the price point. One quick tip tho: check the key travel specs before buying anything. Anything under 1.2mm usually feels like tapping on a table, so aim for that 1.5mm range for a better feel. Also, make sure to grab a small neoprene sleeve for whatever you buy. Even if you're rough with gear, a cheap sleeve will save your keys from getting ripped off by random stuff in your bag if you're tossing it around.

Like someone mentioned, mushy keys are terrible. I once had a thin board flex so much the latency spiked during a flight. I'd suggest checking the frame rigidity and real battery data.