I'm currently visiting family in Germany while also trying to do remote work and these two items are saving me:

European Travel Plug Adapter, FOVAL EU/UK/US Power Strip with USB C and 4 USB Ports, This isn't something that I'd buy if I was traveling light but since I need to hook up multiple items, this power strip adapter is doing really well for me.

Huawei Unlocked Mobile WiFi Hotspot--this hotspot is seriously amazing. It's super small and lightweight so I've actually been throwing it into my crossbody bag while I walk around. You do have to buy a SIM card to use it but those are pretty affordable and easy to buy here.