If you’re short and not in big wood, 28 is pretty good too. To your above post, honeycombed bars are more likely to have a lateral movement but are less likely to twist. I haven’t really worried about it.
I’ll echo what was said above. The chainsaw, unless you’re running it all day, is probably one of the easier parts of doing forestry work or making firewood. Up and down hills, through brush, dragging brush, moving wood, splitting it, even on and off bigger equipment or dragging cables and chains to hook up through the woods is hard. More time on the saw will build up your muscles and it won’t be as big of a deal anymore, just like all the other parts of working in the woods.
Get good at that and acquire tools to help in that before you spend $150 on a bar and the chains for it. $150 will get you a pretty decent maul, some falling wedges and a Council Tool axe, or an older head and a handle you can put together. Or, an inexperienced user can bend an $150 bar that won’t be easy to get straight.