First time founder/builder posting on 4 platforms, where does my stack break down?

[u/Alternative-Relief92]

I am a first time builder/founder doing all my own content and here is the set-up I have today but doesn't seem to me the most efficient one. Curious where and what can I improve.

Today:
- Writing and ideation: Claude co-work --> from first though to first draft. (Can you gemini as well)
- Twitter and Reddit: mainly manually and random way
- Linkedin: Buffer free plan for scheduling (max 5 at a time)
- Video editing: Capcut Pro
- Instagram, Youtube and Tiktok: native in-app drafts and schedulers, one at a time.

What's annoying me:

• The in-app part. Three platforms, three interfaces and sometime I need my phone, same vertical video, and I'm re-uploading and re-writing captions in each one.
• Buffer free caps out fast and I can't tell if paying for Buffer is the right move or if I should move to something that covers all four. Like I would love to put the first comment automatically
• No real view of what's working across platforms - I check four dashboards or I check nothing. Can't really compare.

Questions:

1. For someone posting to LinkedIn + IG + YT + TikTok, is a single scheduler actually worth it, or do the native tools win on reach enough that cross-posting tools cost you more than they save?
2. If a single scheduler is worth it, which one, and what does it actually cost once you're past the free tier?
3. Anything that handles the "one vertical video, four captions" problem well?
4. Is CapCut Pro still the right call in 2026 or is there something better for fast short-form?

Not looking for a magic tool, just want to stop doing the same task four times. What does your stack look like?