Need to decide if Symphony + React + MongoDB + UIkit + Onsen UI is suitable for a high-load project?

Question

symfony

Good afternoon, I'm not a programmer, we are starting to make a highly loaded project, the question arose of choosing the right one. It is clear that everyone works with what is convenient, but we have the opportunity to select additional specialists. I would like to somehow get the most objective assessment, so I'll ask the question here.
Approximate parameters of the project:
1. Planned load of about 500,000 users per day
2. Video content
3. The functionality of the site consists of approximately 5 components, one of which is a video catalog and others in the same plan.
4. Further expansion and writing of new components
5. Security
It is clear that in most speed, security, etc. for the most part it depends not on the framework, but on how to write, but I would like to hear an opinion from the outside The bundle that they planned to do: Yii
+ Angular + MySql + UIkit + Onsen UI
React has proven itself for high-load projects, although I know that many people dislike it due to excessive complexity, etc.
After reading and studying everything more closely, I realized that there may be more suitable bundles for a large project, for example:
1 example: Symphony + React + MongoDB + UIkit + Onsen UI
2 example: a suitable bundle: Symphony + Angular + MongoDB + UIkit + Onsen UI
What do you think?

Answer 1

500K users say nothing.
Study the question of the attentions, they wrote. But another thing is that now the trend is to abandon yii. unfortunately. It is not clear what will happen with v3.
react then?
With a DB you seem to be defined. I don't see any other questions.

Answer 2

The problem that is alarming is that nothing particularly large was written on Yii

there are enough of them, google
then maybe leave the choice to your programmer(s)? They certainly represent the project better than us, who read your 10 lines about nothing.
Example: 500,000 users a day who logged in and saw static and 500,000 users a day who use your crm - these are such different loads that you can't even imagine.
Video content - editing, viewing, downloading, resizing, transcoding? What exactly? By itself, video content can be through an iframe from YouTube and not give any load at all.
So do not intervene, let this issue be decided by those who understand the difference and see the TK clearly.
https://trends.google.ru/trends/explore?date=today...
I think it's worth thinking about Angular again, BUT!!! It all depends on the TK, perhaps there are good reasons in the direction of it.
There is no universal bundle for a large project. It is necessary to look at the TK in the first place, do not engage in nonsense, let the professionals do their job.
PS: symfony is correct, not Symphony