The short answer - it depends on the season.
I’ve 4 kids, so definitely no lack of things to do around here, but I prioritize my time and squeeze in 8-12hrs on average.
I’ll do 1.5-2hr rides Mon-Thu evenings after bedtime (indoor or when there is enough daylight) or a shorter lunch ride (spring/fall when days are shorter). Sat/Sun I’ll do 4-6hrs total, and every other week try to squeeze in a 4-5hr weekend ride plus a 2hr.
I don’t really have any other hobbies and don’t watch any TV (unless I’m on the trainer). That frees up the time significantly. Otherwise, I organize time w/ my partner either to overlap or to alternate (she’s a triathlete), depending on what’s happening. A bit of planning, understanding, and flexibility is definitely needed!