This was true in the age before USB-C. Every single computer had a different proprietary connector or weirdly wonky barrel charger with nonstandard voltages.
Now you can borrow an USB-C charger from anyone - I've used my Steam Deck charger to charge my laptop (it didn't really charge it as it just slowed down the battery drain, but still it got me through the day). Even a phone charger is better than anything, the extra 10-20W will give you a slight boost in runtime.
Now you can borrow an USB-C charger from anyone - I've used my Steam Deck charger to charge my laptop (it didn't really charge it as it just slowed down the battery drain, but still it got me through the day). Even a phone charger is better than anything, the extra 10-20W will give you a slight boost in runtime.