If you are outputing some HTML or markdown directly from the chunk, you need to use results='asis' as a chunk option.
```{r, results='asis'}
library(gt)
for (i in 1:2) {
exibble %>% gt() %>% print()
}
```
See https://bookdown.org/yihui/rmarkdown-cookbook/results-asis.html
gt output are also Rmardkown compatible so you can create a list with you tables, and output theme individually in chunks or inline code. Try that:
```{r}
library(gt)
gts <- lapply(1:2, function(i) exibble %>% gt())
```
`r gts[[1]]`
`r gts[[2]]`