Joy-Con

Very easy for Joy Cons! Did this with mine. All you need is two screwdrivers, one philips and one tri-wing. Tutorials can be found on iFixit

It is, though. In fact, I got stick dritf on my Dual Sense 7 months after I bought the console, while it took 4 years to happen with my Joy-Cons. At leat Nintendo sent me new ones with no charge. Sony made me buy a new controller all together. So far I haven't heard anything about it on the Switch 2

That joy-con drift was really bad on my Switch 1. Nintendo will fix them for free if you send them off, but you have to open up a ticket on their website first. The after market joy con stick replacements are just as bad if not worse than the original ones. It takes a couple of weeks to get the joy

Most likely, the contacts have oxidized, you can try to clean them or you can replace them with new connectors The connectors on both the Joy Con and the Nintendo Switch itself are very easy to replace, you don't need to soldering anything There are plenty of replacement guides on YouTube, and the c

Also, if they are in the US (at least, not sure about other places), Nintendo will still as of last month replace a Joy-Con with stick drift for free, even if it's out of warranty. They won't do that for a Switch Lite.

You could open it and see if you see anything obvious like a problem with the capacitive pad underneath, the Joycon 1s as long as you're gentle are super easy to repair in my experience, swapped out joysticks for quite a few different ones and it was no trouble and the buttons were on the same level

It was beyond the standard manufacturers warranty as this was 2022 looking at my email, and I bought to console at launch in 2017. Nintendo did a blanket extended repair service for joy-cons with no cost. Perhaps that was time limited? Did you contact Nintendo directly via the website initially? Tha

If ur gonna clean it with alcohol use 50% cause imo 70% is too much, https://www.nintendo.com/en-gb/Support/Troubleshooting/Cleaning-and-Disinfecting-Nintendo-Switch-Console-Joy-Con-controllers-and-Accessories-1847635.html