I still have a bottle of flux I've got from them in my closet. The funny thing about it is it leaves conductive traces unless cleaned. Not the best choice for the only flux on the shelf on an electronic DIY shop.
Yep, agreed. But online has its own problems... Amazon is full of shit with zero supply chain control, including safety-relevant stuff like fuses [1], or stuff secretly dropshipped from China or grey-imported from the UK or shipped from Poland with way more than a day of lead time. eBay is even worse.
Bürklin is good but they do take their while to ship because they don't have an insane volume deal with DHL.
And all of online is useless if you have stuff like weird connectors you need to find a matching mate or want to make sure <component> physically fits, or want to find a component that fits. No problem at Conrad, a huge and annoying hassle with online.
Same here in Germany. Conrad, the nation's only electronic parts retail chain, closed down its physical stores during Covid... and even a big city such as Munich does not have an electronic parts store. You gotta drive out to Bürklin in Unterhaching now, and they're geared towards professionals, not amateurs.