The wiki doesn't have a dedicated page for Spencer Brown (the Bills' right tackle), and the search results didn't return specific info about a surgery for him.
That said, based on what's available in the wiki, here's what I can tell you:
There is no article in the wiki about Bills RT Spencer Brown having surgery or any update on his training camp availability for 2026. The Bills section (from the Buffalo Bills page) mentions they need to replace left guard David Edwards but doesn't flag any tackle injuries or procedures. Spencer Brown appears to not be a featured player in the wiki's current coverage.
If you're thinking of a different "Spencer Brown" — there's Spencer Fano (Browns rookie LT), who is healthy and expected to compete for the starting job, and Tanner Brown (Saints kicker), who is also healthy heading into camp.
Could you double-check which player you're asking about? If it's the Bills' RT, the wiki doesn't have that info right now.