Such posts/comments will be removed and may result in a ban. For example: covid denialism/minimising, conspiracy theories about the vaccines or the health measures.
Reddit has specifically stated that it is against the rules to make false or misleading posts/comments about the pandemic, the COVID vaccines and the related health restrictions. The last one is very relevant during the pandemic. The Reddit site rules, linked above, already cover a wide range of subject and provide the following reporting reasons:
Please note that posts or comments (especially spam) may be removed at the mod team's discretion without notice.