Is it possible to transfer static to another server without changing the domain for it?

Question

PHP

There is a site on which there are a lot of pictures (~ 50GB), you need to transfer them (physically) to another server to unload the main one. But the SEO specialist does not allow this to be done, explaining that this is very bad for search engines, supposedly if they are placed on a subdomain like static.mysite.com, then part of the weight and trust will go to this domain.
The essence of the question:
is there any technical possibility to transfer pictures to another server at the same time, so that their path and domain do not change?
How realistic is it that some of the weight can go to another domain (even if it is a subdomain)?
How critical is it?

Answer 1

in nginx add something like

location /images/ {
    proxy_pass http://static.server/;
}