why cant i play roblox on my macbook

not true, I had Roblox on my MacBook for a good 6 months before it just stopped opening, I had a different technique where I would have to redownload it everyyyy time but then that stopped working for some reason too and I'm really confused.

Because it is only available for iOS on iPhones and iPads, not for macOS on Mac computers.

https://apps.apple.com/id/app/roblox/id431946152

If you are using Safari and having trouble..? Roblox suggests using FireFox or yuck' Chrome.

https://en.help.roblox.com/hc/en-us/articles/203312990-Mac-Troubleshooting

If that doesn't help, contact Roblox Support.

https://www.roblox.com/support