Halfords now seem to stock a set of Bosch wipers that would fit your Outback model year: https://www.halfords.com/motoring/wiper-blades/bosch-aerotwin-wiper-blade-set-a399s-220995.html
The thread below seems to give some good details on Outback reliability. Overall I would say the petrol Outbacks should be more reliable than the diesels, i.e. no DPF or turbo to worry about, but I'd say it's more down to how it's been looked after by the previous owner(s). No issues with mine so far, touch wood!
I think the part number is 81611VC000. Although this is from a site in the States and is for a WRX, this seems to be the same on the battery cover on my Outback: STM Tuned Inc.Subaru OEM Battery Positive Red Cover for 2022+ WRX (8161...Genuine OEM Subaru factory replacement battery positive terminal red plastic cover for 2022+ WRX.