Lens suggestions for jet spotting and birding with an EOS R10

[emtdiamond]

Looking for ideas or suggestions. I'm just starting my journey into the world of photography and have set my initial goals. I've been using an old Sony Cyber-shot DSC-H200 and my Samsung Galaxy S23 Ultra for most of my needs but they have falling well short of what I'm looking to do. The S23 Ultra takes incredible photos but I want a bit more.

My goal is taking photos while jet spotting (as in fighter jets) but I also want to be able to shoot wildlife. I just bought a Canon EOS R10 with the 18-45mm lens. I've been reading that the Canon RF 100-400mm is the ideal choice but have also read a 500 or 600 should be included in my considerations. 

Any help and/or guidance will be greatly appreciated.

Thank you

emtdiamond

[emtdiamond]

The photos I shared were shot on my Samsung Galaxy S23 Ultra and a Sony Cybershot DSC-H200. I just found out the 70-200mm is not going to give me what I'm looking for. I attempted to shoot a Blackhawk flying over my house, at around 3,600 feet, and the shots weren't even close. They came out no better than looking through my phone.
Here's my gear rundown, if this is okay to share.
RF-S 18-45mm F4.5-6.3 IS STM
EF 75-300mm F4-5.6 IS USM
RF 100-400mm F5.6-8 IS USM
RF 50mm F1.8 STM
EF-S 24mm F2.8 STM
Rokinon RF 14mm F2.8
EF-S 55-250mm F4-5.6 IS STM
EF 70-200mm F4 L IS USM