I’d also set your weekly “paycheck” to what you could afford in your lowest month from the last year and only revisit that number quarterly so it stays realistic. In the holding account and create small buckets for “true expenses” like car maintenance and annual renewals so they don’t blow up a slow month. After you’ve buffered one month of bills, auto-sweep overflow first to a starter emergency fund (one rent payment is a solid target), then to next month’s income.
Your hub is limited by older DP bandwidth so one 4K drops to 30 Hz; fix it with a dock that gives two independent GPU outputs or a USB graphics dock that does dual 4K60 with drivers.
If using MST, verify DP 1.4 with compression on both ends, keep cables up to spec, and expect a bit of CPU use with the USB route.