I like to bike when I can, but I’m still nervous to leave it even with a U-lock around the frame. I’ve also had a seat stolen before (not even a good one), but I’m not sure if there’s anything reasonable to do about that.
What do you do to lock up your bike for commuting?
Rentals could work or maybe a decent folding scooter. If you can get by at all without power, it might be worth looking at Bromptons/Brompnots or perhaps something like a Strida. There’s also folding kick scooters as well as powered ones.
The Litelock X1 sounds like it would be the Ulock for you though, it’s not super heavy, fairly compact, but still very cut resistant.
All that said, if everywhere you need to go is covered by rental bikes or scooters, I’d say at least start out using them to get a sense of what works best for you. There’s something to be said for not worrying about maintenance, theft, or storage too.