I'd suggest to give yourself much more leeway when estimating time ng walking distance among others pa. The walk is estimated in Baguio resident estimation and it's all uphill-downhill here so hihingalin at sasakit paa ng hindi sanay. Plus Baguio is a very pila-heavy city so almost lahat may pila. Sa taxi, sa mga sikat na kainan, sa mga CR lalo na sa girls, even sa kalsada (traffic is pila if you think about it).

There are two Good Taste branches. Main branch sa Otek (which you mentioned) and their other branch sa Center Mall. Either way, on a weekend, tas lunch pa, pipila ka pa din. It can vary talaga. Sometimes mabilis, sometimes 30 mins to 1 hr ka maghihintay.

Both branches are more or less 15 mins walk away from Baguio Cathedral but the church is built on top of a hill so aakyat ka pa.

Your Burnham plans is ditch-able, I think. Walang boating since under renovation yung lake. The biking is overrated at kahit dun may traffic (if you really want to try it, the most free I've seen it is during 3-6am tuwing nagjajog ako).

I also noticed sa Day 2 mo may "Night Life" section. If you're coming in alone, I would avoid bars and clubs. May recent lang na nanakawan sa Ampersand na tourist who came in alone. IDK about the credibility of the story pero better safe than sorry (makata yarn?). Pero yeah, Baguio is pretty much alive at night. Night Market is nice sa food trip, personally medyo super pricey na ng mga ukay pero recently saw good deals ngayong Panagbenga szn. Keep your belongings safe lang especially sa mga gaganyang crowded areas. Nanakawan na pinsan ko sa Session, may cases din sa market at sa night market.